Home / 48,439.28-72,672.69-18,865.58

Finding the Fourth Proportional to 48,439.28, 72,672.69 and 18,865.58

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Solution

The fourth proportional to 48,439.28, 72,672.69 and 18,865.58 is: 28,303.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,439.28 : 72,672.69 = 18,865.58 : x
  2. Step 2: Convert to fraction form
    48,439.28/72,672.69 = 18,865.58/x
  3. Step 3: Cross multiply
    48,439.28x = 72,672.69 × 18,865.58
  4. Step 4: Simplify right side
    48,439.28x = 1,371,012,154.39
  5. Step 5: Solve for x
    x = 1,371,012,154.39/48,439.28
  6. Step 6: Final answer
    x = 28,303.73

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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.