Home / 23,565.20-32,520.60-12,810.80

Finding the Fourth Proportional to 23,565.20, 32,520.60 and 12,810.80

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Solution

The fourth proportional to 23,565.20, 32,520.60 and 12,810.80 is: 17,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,565.20 : 32,520.60 = 12,810.80 : x
  2. Step 2: Convert to fraction form
    23,565.20/32,520.60 = 12,810.80/x
  3. Step 3: Cross multiply
    23,565.20x = 32,520.60 × 12,810.80
  4. Step 4: Simplify right side
    23,565.20x = 416,614,902.48
  5. Step 5: Solve for x
    x = 416,614,902.48/23,565.20
  6. Step 6: Final answer
    x = 17,679.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.