Home / 18,211.23-25,134.71-17,380.17

Finding the Fourth Proportional to 18,211.23, 25,134.71 and 17,380.17

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Solution

The fourth proportional to 18,211.23, 25,134.71 and 17,380.17 is: 23,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.23 : 25,134.71 = 17,380.17 : x
  2. Step 2: Convert to fraction form
    18,211.23/25,134.71 = 17,380.17/x
  3. Step 3: Cross multiply
    18,211.23x = 25,134.71 × 17,380.17
  4. Step 4: Simplify right side
    18,211.23x = 436,845,445.80
  5. Step 5: Solve for x
    x = 436,845,445.80/18,211.23
  6. Step 6: Final answer
    x = 23,987.70

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Half scale
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Double scale
Find fourth proportional to 18,212.23, 25,136.09 and 17,381.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.