Home / 39,319.43-54,261.16-21,414.51

Finding the Fourth Proportional to 39,319.43, 54,261.16 and 21,414.51

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Solution

The fourth proportional to 39,319.43, 54,261.16 and 21,414.51 is: 29,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.43 : 54,261.16 = 21,414.51 : x
  2. Step 2: Convert to fraction form
    39,319.43/54,261.16 = 21,414.51/x
  3. Step 3: Cross multiply
    39,319.43x = 54,261.16 × 21,414.51
  4. Step 4: Simplify right side
    39,319.43x = 1,161,976,099.90
  5. Step 5: Solve for x
    x = 1,161,976,099.90/39,319.43
  6. Step 6: Final answer
    x = 29,552.21

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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.