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Finding the Fourth Proportional to 32,425.80, 48,611.70 and 13,720.20

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Solution

The fourth proportional to 32,425.80, 48,611.70 and 13,720.20 is: 20,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,425.80 : 48,611.70 = 13,720.20 : x
  2. Step 2: Convert to fraction form
    32,425.80/48,611.70 = 13,720.20/x
  3. Step 3: Cross multiply
    32,425.80x = 48,611.70 × 13,720.20
  4. Step 4: Simplify right side
    32,425.80x = 666,962,246.34
  5. Step 5: Solve for x
    x = 666,962,246.34/32,425.80
  6. Step 6: Final answer
    x = 20,568.88

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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.