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Finding the Fourth Proportional to 39,423, 54,412.88 and 25,996.68

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Solution

The fourth proportional to 39,423, 54,412.88 and 25,996.68 is: 35,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,423 : 54,412.88 = 25,996.68 : x
  2. Step 2: Convert to fraction form
    39,423/54,412.88 = 25,996.68/x
  3. Step 3: Cross multiply
    39,423x = 54,412.88 × 25,996.68
  4. Step 4: Simplify right side
    39,423x = 1,414,554,229.24
  5. Step 5: Solve for x
    x = 1,414,554,229.24/39,423
  6. Step 6: Final answer
    x = 35,881.45

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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.