Home / 31,840.65-47,753.06-13,115.61

Finding the Fourth Proportional to 31,840.65, 47,753.06 and 13,115.61

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Solution

The fourth proportional to 31,840.65, 47,753.06 and 13,115.61 is: 19,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.65 : 47,753.06 = 13,115.61 : x
  2. Step 2: Convert to fraction form
    31,840.65/47,753.06 = 13,115.61/x
  3. Step 3: Cross multiply
    31,840.65x = 47,753.06 × 13,115.61
  4. Step 4: Simplify right side
    31,840.65x = 626,310,445.69
  5. Step 5: Solve for x
    x = 626,310,445.69/31,840.65
  6. Step 6: Final answer
    x = 19,670.15

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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.