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Finding the Fourth Proportional to 39,745, 54,848.10 and 22,979.08

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Solution

The fourth proportional to 39,745, 54,848.10 and 22,979.08 is: 31,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745 : 54,848.10 = 22,979.08 : x
  2. Step 2: Convert to fraction form
    39,745/54,848.10 = 22,979.08/x
  3. Step 3: Cross multiply
    39,745x = 54,848.10 × 22,979.08
  4. Step 4: Simplify right side
    39,745x = 1,260,358,877.75
  5. Step 5: Solve for x
    x = 1,260,358,877.75/39,745
  6. Step 6: Final answer
    x = 31,711.13

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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.