Home / 47,715.27-71,567.43-12,657.66

Finding the Fourth Proportional to 47,715.27, 71,567.43 and 12,657.66

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Solution

The fourth proportional to 47,715.27, 71,567.43 and 12,657.66 is: 18,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.27 : 71,567.43 = 12,657.66 : x
  2. Step 2: Convert to fraction form
    47,715.27/71,567.43 = 12,657.66/x
  3. Step 3: Cross multiply
    47,715.27x = 71,567.43 × 12,657.66
  4. Step 4: Simplify right side
    47,715.27x = 905,876,196.01
  5. Step 5: Solve for x
    x = 905,876,196.01/47,715.27
  6. Step 6: Final answer
    x = 18,985.04

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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.