Home / 20,534.05-28,342.15-11,586.71

Finding the Fourth Proportional to 20,534.05, 28,342.15 and 11,586.71

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Solution

The fourth proportional to 20,534.05, 28,342.15 and 11,586.71 is: 15,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.05 : 28,342.15 = 11,586.71 : x
  2. Step 2: Convert to fraction form
    20,534.05/28,342.15 = 11,586.71/x
  3. Step 3: Cross multiply
    20,534.05x = 28,342.15 × 11,586.71
  4. Step 4: Simplify right side
    20,534.05x = 328,392,439.67
  5. Step 5: Solve for x
    x = 328,392,439.67/20,534.05
  6. Step 6: Final answer
    x = 15,992.58

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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.