Home / 38,346.60-57,541.86-20,817.90

Finding the Fourth Proportional to 38,346.60, 57,541.86 and 20,817.90

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Solution

The fourth proportional to 38,346.60, 57,541.86 and 20,817.90 is: 31,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,346.60 : 57,541.86 = 20,817.90 : x
  2. Step 2: Convert to fraction form
    38,346.60/57,541.86 = 20,817.90/x
  3. Step 3: Cross multiply
    38,346.60x = 57,541.86 × 20,817.90
  4. Step 4: Simplify right side
    38,346.60x = 1,197,900,687.29
  5. Step 5: Solve for x
    x = 1,197,900,687.29/38,346.60
  6. Step 6: Final answer
    x = 31,238.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.