Home / 48,218.88-72,318.60-13,155.60

Finding the Fourth Proportional to 48,218.88, 72,318.60 and 13,155.60

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Solution

The fourth proportional to 48,218.88, 72,318.60 and 13,155.60 is: 19,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,218.88 : 72,318.60 = 13,155.60 : x
  2. Step 2: Convert to fraction form
    48,218.88/72,318.60 = 13,155.60/x
  3. Step 3: Cross multiply
    48,218.88x = 72,318.60 × 13,155.60
  4. Step 4: Simplify right side
    48,218.88x = 951,394,574.16
  5. Step 5: Solve for x
    x = 951,394,574.16/48,218.88
  6. Step 6: Final answer
    x = 19,730.75

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1.5x scale

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.