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Finding the Fourth Proportional to 39,807.70, 54,911.81 and 24,877.78

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Solution

The fourth proportional to 39,807.70, 54,911.81 and 24,877.78 is: 34,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.70 : 54,911.81 = 24,877.78 : x
  2. Step 2: Convert to fraction form
    39,807.70/54,911.81 = 24,877.78/x
  3. Step 3: Cross multiply
    39,807.70x = 54,911.81 × 24,877.78
  4. Step 4: Simplify right side
    39,807.70x = 1,366,084,059.42
  5. Step 5: Solve for x
    x = 1,366,084,059.42/39,807.70
  6. Step 6: Final answer
    x = 34,317.08

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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.