Home / 47,715.63-71,577.51-12,654.87

Finding the Fourth Proportional to 47,715.63, 71,577.51 and 12,654.87

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Solution

The fourth proportional to 47,715.63, 71,577.51 and 12,654.87 is: 18,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.63 : 71,577.51 = 12,654.87 : x
  2. Step 2: Convert to fraction form
    47,715.63/71,577.51 = 12,654.87/x
  3. Step 3: Cross multiply
    47,715.63x = 71,577.51 × 12,654.87
  4. Step 4: Simplify right side
    47,715.63x = 905,804,083.97
  5. Step 5: Solve for x
    x = 905,804,083.97/47,715.63
  6. Step 6: Final answer
    x = 18,983.38

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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.