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Finding the Fourth Proportional to 32,544.40, 48,832.80 and 18,515.20

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Solution

The fourth proportional to 32,544.40, 48,832.80 and 18,515.20 is: 27,782.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,544.40 : 48,832.80 = 18,515.20 : x
  2. Step 2: Convert to fraction form
    32,544.40/48,832.80 = 18,515.20/x
  3. Step 3: Cross multiply
    32,544.40x = 48,832.80 × 18,515.20
  4. Step 4: Simplify right side
    32,544.40x = 904,149,058.56
  5. Step 5: Solve for x
    x = 904,149,058.56/32,544.40
  6. Step 6: Final answer
    x = 27,782.02

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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.