Home / 39,302.50-54,237.12-21,397.46

Finding the Fourth Proportional to 39,302.50, 54,237.12 and 21,397.46

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Solution

The fourth proportional to 39,302.50, 54,237.12 and 21,397.46 is: 29,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.50 : 54,237.12 = 21,397.46 : x
  2. Step 2: Convert to fraction form
    39,302.50/54,237.12 = 21,397.46/x
  3. Step 3: Cross multiply
    39,302.50x = 54,237.12 × 21,397.46
  4. Step 4: Simplify right side
    39,302.50x = 1,160,536,605.72
  5. Step 5: Solve for x
    x = 1,160,536,605.72/39,302.50
  6. Step 6: Final answer
    x = 29,528.32

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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.