Home / 39,385.92-54,363.81-22,399.32

Finding the Fourth Proportional to 39,385.92, 54,363.81 and 22,399.32

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Solution

The fourth proportional to 39,385.92, 54,363.81 and 22,399.32 is: 30,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.92 : 54,363.81 = 22,399.32 : x
  2. Step 2: Convert to fraction form
    39,385.92/54,363.81 = 22,399.32/x
  3. Step 3: Cross multiply
    39,385.92x = 54,363.81 × 22,399.32
  4. Step 4: Simplify right side
    39,385.92x = 1,217,712,376.61
  5. Step 5: Solve for x
    x = 1,217,712,376.61/39,385.92
  6. Step 6: Final answer
    x = 30,917.45

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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.