Home / 48,276.60-72,432.30-21,620.40

Finding the Fourth Proportional to 48,276.60, 72,432.30 and 21,620.40

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Solution

The fourth proportional to 48,276.60, 72,432.30 and 21,620.40 is: 32,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,276.60 : 72,432.30 = 21,620.40 : x
  2. Step 2: Convert to fraction form
    48,276.60/72,432.30 = 21,620.40/x
  3. Step 3: Cross multiply
    48,276.60x = 72,432.30 × 21,620.40
  4. Step 4: Simplify right side
    48,276.60x = 1,566,015,298.92
  5. Step 5: Solve for x
    x = 1,566,015,298.92/48,276.60
  6. Step 6: Final answer
    x = 32,438.39

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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.