Home / 23,174.30-31,970.32-15,617.88

Finding the Fourth Proportional to 23,174.30, 31,970.32 and 15,617.88

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Solution

The fourth proportional to 23,174.30, 31,970.32 and 15,617.88 is: 21,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,174.30 : 31,970.32 = 15,617.88 : x
  2. Step 2: Convert to fraction form
    23,174.30/31,970.32 = 15,617.88/x
  3. Step 3: Cross multiply
    23,174.30x = 31,970.32 × 15,617.88
  4. Step 4: Simplify right side
    23,174.30x = 499,308,582.28
  5. Step 5: Solve for x
    x = 499,308,582.28/23,174.30
  6. Step 6: Final answer
    x = 21,545.79

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1.5x scale

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.