Home / 23,118.40-31,894.80-15,165.04

Finding the Fourth Proportional to 23,118.40, 31,894.80 and 15,165.04

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Solution

The fourth proportional to 23,118.40, 31,894.80 and 15,165.04 is: 20,922.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.40 : 31,894.80 = 15,165.04 : x
  2. Step 2: Convert to fraction form
    23,118.40/31,894.80 = 15,165.04/x
  3. Step 3: Cross multiply
    23,118.40x = 31,894.80 × 15,165.04
  4. Step 4: Simplify right side
    23,118.40x = 483,685,917.79
  5. Step 5: Solve for x
    x = 483,685,917.79/23,118.40
  6. Step 6: Final answer
    x = 20,922.12

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Double scale
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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.