Home / 47,643.57-71,459.88-12,585.96

Finding the Fourth Proportional to 47,643.57, 71,459.88 and 12,585.96

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Solution

The fourth proportional to 47,643.57, 71,459.88 and 12,585.96 is: 18,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,643.57 : 71,459.88 = 12,585.96 : x
  2. Step 2: Convert to fraction form
    47,643.57/71,459.88 = 12,585.96/x
  3. Step 3: Cross multiply
    47,643.57x = 71,459.88 × 12,585.96
  4. Step 4: Simplify right side
    47,643.57x = 899,391,191.28
  5. Step 5: Solve for x
    x = 899,391,191.28/47,643.57
  6. Step 6: Final answer
    x = 18,877.49

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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.