Home / 47,547.82-71,321.73-12,487.42

Finding the Fourth Proportional to 47,547.82, 71,321.73 and 12,487.42

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Solution

The fourth proportional to 47,547.82, 71,321.73 and 12,487.42 is: 18,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,547.82 : 71,321.73 = 12,487.42 : x
  2. Step 2: Convert to fraction form
    47,547.82/71,321.73 = 12,487.42/x
  3. Step 3: Cross multiply
    47,547.82x = 71,321.73 × 12,487.42
  4. Step 4: Simplify right side
    47,547.82x = 890,624,397.64
  5. Step 5: Solve for x
    x = 890,624,397.64/47,547.82
  6. Step 6: Final answer
    x = 18,731.13

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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.