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Finding the Fourth Proportional to 39,463.92, 54,461.03 and 21,559.68

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Solution

The fourth proportional to 39,463.92, 54,461.03 and 21,559.68 is: 29,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,463.92 : 54,461.03 = 21,559.68 : x
  2. Step 2: Convert to fraction form
    39,463.92/54,461.03 = 21,559.68/x
  3. Step 3: Cross multiply
    39,463.92x = 54,461.03 × 21,559.68
  4. Step 4: Simplify right side
    39,463.92x = 1,174,162,271.47
  5. Step 5: Solve for x
    x = 1,174,162,271.47/39,463.92
  6. Step 6: Final answer
    x = 29,752.80

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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.