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Finding the Fourth Proportional to 32,020.80, 48,002.40 and 20,932.80

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Solution

The fourth proportional to 32,020.80, 48,002.40 and 20,932.80 is: 31,380.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,020.80 : 48,002.40 = 20,932.80 : x
  2. Step 2: Convert to fraction form
    32,020.80/48,002.40 = 20,932.80/x
  3. Step 3: Cross multiply
    32,020.80x = 48,002.40 × 20,932.80
  4. Step 4: Simplify right side
    32,020.80x = 1,004,824,638.72
  5. Step 5: Solve for x
    x = 1,004,824,638.72/32,020.80
  6. Step 6: Final answer
    x = 31,380.37

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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.