Home / 23,160-31,987.20-15,695.04

Finding the Fourth Proportional to 23,160, 31,987.20 and 15,695.04

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Solution

The fourth proportional to 23,160, 31,987.20 and 15,695.04 is: 21,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160 : 31,987.20 = 15,695.04 : x
  2. Step 2: Convert to fraction form
    23,160/31,987.20 = 15,695.04/x
  3. Step 3: Cross multiply
    23,160x = 31,987.20 × 15,695.04
  4. Step 4: Simplify right side
    23,160x = 502,040,383.49
  5. Step 5: Solve for x
    x = 502,040,383.49/23,160
  6. Step 6: Final answer
    x = 21,677.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.