Home / 31,680.24-47,477.04-11,939.04

Finding the Fourth Proportional to 31,680.24, 47,477.04 and 11,939.04

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Solution

The fourth proportional to 31,680.24, 47,477.04 and 11,939.04 is: 17,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.24 : 47,477.04 = 11,939.04 : x
  2. Step 2: Convert to fraction form
    31,680.24/47,477.04 = 11,939.04/x
  3. Step 3: Cross multiply
    31,680.24x = 47,477.04 × 11,939.04
  4. Step 4: Simplify right side
    31,680.24x = 566,830,279.64
  5. Step 5: Solve for x
    x = 566,830,279.64/31,680.24
  6. Step 6: Final answer
    x = 17,892.23

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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.