Home / 31,456.17-47,187.81-10,398.96

Finding the Fourth Proportional to 31,456.17, 47,187.81 and 10,398.96

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Solution

The fourth proportional to 31,456.17, 47,187.81 and 10,398.96 is: 15,599.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.17 : 47,187.81 = 10,398.96 : x
  2. Step 2: Convert to fraction form
    31,456.17/47,187.81 = 10,398.96/x
  3. Step 3: Cross multiply
    31,456.17x = 47,187.81 × 10,398.96
  4. Step 4: Simplify right side
    31,456.17x = 490,704,148.68
  5. Step 5: Solve for x
    x = 490,704,148.68/31,456.17
  6. Step 6: Final answer
    x = 15,599.62

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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.