Home / 31,320.57-46,976.30-9,127.99

Finding the Fourth Proportional to 31,320.57, 46,976.30 and 9,127.99

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Solution

The fourth proportional to 31,320.57, 46,976.30 and 9,127.99 is: 13,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.57 : 46,976.30 = 9,127.99 : x
  2. Step 2: Convert to fraction form
    31,320.57/46,976.30 = 9,127.99/x
  3. Step 3: Cross multiply
    31,320.57x = 46,976.30 × 9,127.99
  4. Step 4: Simplify right side
    31,320.57x = 428,799,295.29
  5. Step 5: Solve for x
    x = 428,799,295.29/31,320.57
  6. Step 6: Final answer
    x = 13,690.66

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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.