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Finding the Fourth Proportional to 47,487.80, 71,248.20 and 17,914.16

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Solution

The fourth proportional to 47,487.80, 71,248.20 and 17,914.16 is: 26,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,487.80 : 71,248.20 = 17,914.16 : x
  2. Step 2: Convert to fraction form
    47,487.80/71,248.20 = 17,914.16/x
  3. Step 3: Cross multiply
    47,487.80x = 71,248.20 × 17,914.16
  4. Step 4: Simplify right side
    47,487.80x = 1,276,351,654.51
  5. Step 5: Solve for x
    x = 1,276,351,654.51/47,487.80
  6. Step 6: Final answer
    x = 26,877.46

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1.5x scale

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.