Home / 20,204.70-30,307.05-9,116.70

Finding the Fourth Proportional to 20,204.70, 30,307.05 and 9,116.70

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Solution

The fourth proportional to 20,204.70, 30,307.05 and 9,116.70 is: 13,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.70 : 30,307.05 = 9,116.70 : x
  2. Step 2: Convert to fraction form
    20,204.70/30,307.05 = 9,116.70/x
  3. Step 3: Cross multiply
    20,204.70x = 30,307.05 × 9,116.70
  4. Step 4: Simplify right side
    20,204.70x = 276,300,282.74
  5. Step 5: Solve for x
    x = 276,300,282.74/20,204.70
  6. Step 6: Final answer
    x = 13,675.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.