Home / 21,824.80-32,753.40-8,686.60

Finding the Fourth Proportional to 21,824.80, 32,753.40 and 8,686.60

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Solution

The fourth proportional to 21,824.80, 32,753.40 and 8,686.60 is: 13,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.80 : 32,753.40 = 8,686.60 : x
  2. Step 2: Convert to fraction form
    21,824.80/32,753.40 = 8,686.60/x
  3. Step 3: Cross multiply
    21,824.80x = 32,753.40 × 8,686.60
  4. Step 4: Simplify right side
    21,824.80x = 284,515,684.44
  5. Step 5: Solve for x
    x = 284,515,684.44/21,824.80
  6. Step 6: Final answer
    x = 13,036.35

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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.