Home / 48,268.70-72,403.05-13,211.90

Finding the Fourth Proportional to 48,268.70, 72,403.05 and 13,211.90

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Solution

The fourth proportional to 48,268.70, 72,403.05 and 13,211.90 is: 19,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,268.70 : 72,403.05 = 13,211.90 : x
  2. Step 2: Convert to fraction form
    48,268.70/72,403.05 = 13,211.90/x
  3. Step 3: Cross multiply
    48,268.70x = 72,403.05 × 13,211.90
  4. Step 4: Simplify right side
    48,268.70x = 956,581,856.30
  5. Step 5: Solve for x
    x = 956,581,856.30/48,268.70
  6. Step 6: Final answer
    x = 19,817.85

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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.