Home / 20,753.60-31,123.77-6,710.66

Finding the Fourth Proportional to 20,753.60, 31,123.77 and 6,710.66

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Solution

The fourth proportional to 20,753.60, 31,123.77 and 6,710.66 is: 10,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.60 : 31,123.77 = 6,710.66 : x
  2. Step 2: Convert to fraction form
    20,753.60/31,123.77 = 6,710.66/x
  3. Step 3: Cross multiply
    20,753.60x = 31,123.77 × 6,710.66
  4. Step 4: Simplify right side
    20,753.60x = 208,861,038.39
  5. Step 5: Solve for x
    x = 208,861,038.39/20,753.60
  6. Step 6: Final answer
    x = 10,063.85

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