Home / 48,420.30-72,630.45-13,359.90

Finding the Fourth Proportional to 48,420.30, 72,630.45 and 13,359.90

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Solution

The fourth proportional to 48,420.30, 72,630.45 and 13,359.90 is: 20,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,420.30 : 72,630.45 = 13,359.90 : x
  2. Step 2: Convert to fraction form
    48,420.30/72,630.45 = 13,359.90/x
  3. Step 3: Cross multiply
    48,420.30x = 72,630.45 × 13,359.90
  4. Step 4: Simplify right side
    48,420.30x = 970,335,548.96
  5. Step 5: Solve for x
    x = 970,335,548.96/48,420.30
  6. Step 6: Final answer
    x = 20,039.85

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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.