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Finding the Fourth Proportional to 48,652.80, 72,979.20 and 13,592.40

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Solution

The fourth proportional to 48,652.80, 72,979.20 and 13,592.40 is: 20,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,652.80 : 72,979.20 = 13,592.40 : x
  2. Step 2: Convert to fraction form
    48,652.80/72,979.20 = 13,592.40/x
  3. Step 3: Cross multiply
    48,652.80x = 72,979.20 × 13,592.40
  4. Step 4: Simplify right side
    48,652.80x = 991,962,478.08
  5. Step 5: Solve for x
    x = 991,962,478.08/48,652.80
  6. Step 6: Final answer
    x = 20,388.60

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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.