Home / 39,302.16-54,237.20-21,397.16

Finding the Fourth Proportional to 39,302.16, 54,237.20 and 21,397.16

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Solution

The fourth proportional to 39,302.16, 54,237.20 and 21,397.16 is: 29,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.16 : 54,237.20 = 21,397.16 : x
  2. Step 2: Convert to fraction form
    39,302.16/54,237.20 = 21,397.16/x
  3. Step 3: Cross multiply
    39,302.16x = 54,237.20 × 21,397.16
  4. Step 4: Simplify right side
    39,302.16x = 1,160,521,668.18
  5. Step 5: Solve for x
    x = 1,160,521,668.18/39,302.16
  6. Step 6: Final answer
    x = 29,528.19

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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.