Home / 39,329.17-54,272.70-21,424.32

Finding the Fourth Proportional to 39,329.17, 54,272.70 and 21,424.32

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Solution

The fourth proportional to 39,329.17, 54,272.70 and 21,424.32 is: 29,564.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,329.17 : 54,272.70 = 21,424.32 : x
  2. Step 2: Convert to fraction form
    39,329.17/54,272.70 = 21,424.32/x
  3. Step 3: Cross multiply
    39,329.17x = 54,272.70 × 21,424.32
  4. Step 4: Simplify right side
    39,329.17x = 1,162,755,692.06
  5. Step 5: Solve for x
    x = 1,162,755,692.06/39,329.17
  6. Step 6: Final answer
    x = 29,564.72

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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.