Home / 39,498.08-54,505.32-21,589.76

Finding the Fourth Proportional to 39,498.08, 54,505.32 and 21,589.76

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Solution

The fourth proportional to 39,498.08, 54,505.32 and 21,589.76 is: 29,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,498.08 : 54,505.32 = 21,589.76 : x
  2. Step 2: Convert to fraction form
    39,498.08/54,505.32 = 21,589.76/x
  3. Step 3: Cross multiply
    39,498.08x = 54,505.32 × 21,589.76
  4. Step 4: Simplify right side
    39,498.08x = 1,176,756,777.52
  5. Step 5: Solve for x
    x = 1,176,756,777.52/39,498.08
  6. Step 6: Final answer
    x = 29,792.76

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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.