Home / 31,129.20-46,694.20-10,352.70

Finding the Fourth Proportional to 31,129.20, 46,694.20 and 10,352.70

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Solution

The fourth proportional to 31,129.20, 46,694.20 and 10,352.70 is: 15,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.20 : 46,694.20 = 10,352.70 : x
  2. Step 2: Convert to fraction form
    31,129.20/46,694.20 = 10,352.70/x
  3. Step 3: Cross multiply
    31,129.20x = 46,694.20 × 10,352.70
  4. Step 4: Simplify right side
    31,129.20x = 483,411,044.34
  5. Step 5: Solve for x
    x = 483,411,044.34/31,129.20
  6. Step 6: Final answer
    x = 15,529.18

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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.