Home / 26,490.45-36,540.60-15,728.02

Finding the Fourth Proportional to 26,490.45, 36,540.60 and 15,728.02

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Solution

The fourth proportional to 26,490.45, 36,540.60 and 15,728.02 is: 21,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.45 : 36,540.60 = 15,728.02 : x
  2. Step 2: Convert to fraction form
    26,490.45/36,540.60 = 15,728.02/x
  3. Step 3: Cross multiply
    26,490.45x = 36,540.60 × 15,728.02
  4. Step 4: Simplify right side
    26,490.45x = 574,711,104.91
  5. Step 5: Solve for x
    x = 574,711,104.91/26,490.45
  6. Step 6: Final answer
    x = 21,695.03

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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.