Home / 39,392.68-54,360.67-22,398.78

Finding the Fourth Proportional to 39,392.68, 54,360.67 and 22,398.78

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Solution

The fourth proportional to 39,392.68, 54,360.67 and 22,398.78 is: 30,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.68 : 54,360.67 = 22,398.78 : x
  2. Step 2: Convert to fraction form
    39,392.68/54,360.67 = 22,398.78/x
  3. Step 3: Cross multiply
    39,392.68x = 54,360.67 × 22,398.78
  4. Step 4: Simplify right side
    39,392.68x = 1,217,612,572.06
  5. Step 5: Solve for x
    x = 1,217,612,572.06/39,392.68
  6. Step 6: Final answer
    x = 30,909.62

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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.