Home / 48,439.19-72,660.15-13,378.83

Finding the Fourth Proportional to 48,439.19, 72,660.15 and 13,378.83

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Solution

The fourth proportional to 48,439.19, 72,660.15 and 13,378.83 is: 20,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,439.19 : 72,660.15 = 13,378.83 : x
  2. Step 2: Convert to fraction form
    48,439.19/72,660.15 = 13,378.83/x
  3. Step 3: Cross multiply
    48,439.19x = 72,660.15 × 13,378.83
  4. Step 4: Simplify right side
    48,439.19x = 972,107,794.62
  5. Step 5: Solve for x
    x = 972,107,794.62/48,439.19
  6. Step 6: Final answer
    x = 20,068.62

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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.