Home / 48,304.10-72,456.15-20,219.30

Finding the Fourth Proportional to 48,304.10, 72,456.15 and 20,219.30

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Solution

The fourth proportional to 48,304.10, 72,456.15 and 20,219.30 is: 30,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,304.10 : 72,456.15 = 20,219.30 : x
  2. Step 2: Convert to fraction form
    48,304.10/72,456.15 = 20,219.30/x
  3. Step 3: Cross multiply
    48,304.10x = 72,456.15 × 20,219.30
  4. Step 4: Simplify right side
    48,304.10x = 1,465,012,633.70
  5. Step 5: Solve for x
    x = 1,465,012,633.70/48,304.10
  6. Step 6: Final answer
    x = 30,328.95

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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.