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Finding the Fourth Proportional to 47,374.53, 71,035.68 and 19,287.39

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Solution

The fourth proportional to 47,374.53, 71,035.68 and 19,287.39 is: 28,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,374.53 : 71,035.68 = 19,287.39 : x
  2. Step 2: Convert to fraction form
    47,374.53/71,035.68 = 19,287.39/x
  3. Step 3: Cross multiply
    47,374.53x = 71,035.68 × 19,287.39
  4. Step 4: Simplify right side
    47,374.53x = 1,370,092,864.08
  5. Step 5: Solve for x
    x = 1,370,092,864.08/47,374.53
  6. Step 6: Final answer
    x = 28,920.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.