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Finding the Fourth Proportional to 32,259.60, 48,389.40 and 20,449.80

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Solution

The fourth proportional to 32,259.60, 48,389.40 and 20,449.80 is: 30,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,259.60 : 48,389.40 = 20,449.80 : x
  2. Step 2: Convert to fraction form
    32,259.60/48,389.40 = 20,449.80/x
  3. Step 3: Cross multiply
    32,259.60x = 48,389.40 × 20,449.80
  4. Step 4: Simplify right side
    32,259.60x = 989,553,552.12
  5. Step 5: Solve for x
    x = 989,553,552.12/32,259.60
  6. Step 6: Final answer
    x = 30,674.70

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Similar ratio
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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.