Home / 47,417.29-71,130-12,356.89

Finding the Fourth Proportional to 47,417.29, 71,130 and 12,356.89

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Solution

The fourth proportional to 47,417.29, 71,130 and 12,356.89 is: 18,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,417.29 : 71,130 = 12,356.89 : x
  2. Step 2: Convert to fraction form
    47,417.29/71,130 = 12,356.89/x
  3. Step 3: Cross multiply
    47,417.29x = 71,130 × 12,356.89
  4. Step 4: Simplify right side
    47,417.29x = 878,945,585.70
  5. Step 5: Solve for x
    x = 878,945,585.70/47,417.29
  6. Step 6: Final answer
    x = 18,536.39

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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.