Home / 26,780.20-36,956.04-15,449.72

Finding the Fourth Proportional to 26,780.20, 36,956.04 and 15,449.72

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Solution

The fourth proportional to 26,780.20, 36,956.04 and 15,449.72 is: 21,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.20 : 36,956.04 = 15,449.72 : x
  2. Step 2: Convert to fraction form
    26,780.20/36,956.04 = 15,449.72/x
  3. Step 3: Cross multiply
    26,780.20x = 36,956.04 × 15,449.72
  4. Step 4: Simplify right side
    26,780.20x = 570,960,285.53
  5. Step 5: Solve for x
    x = 570,960,285.53/26,780.20
  6. Step 6: Final answer
    x = 21,320.24

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