Home / 21,789.93-32,656.18-8,635.13

Finding the Fourth Proportional to 21,789.93, 32,656.18 and 8,635.13

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Solution

The fourth proportional to 21,789.93, 32,656.18 and 8,635.13 is: 12,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.93 : 32,656.18 = 8,635.13 : x
  2. Step 2: Convert to fraction form
    21,789.93/32,656.18 = 8,635.13/x
  3. Step 3: Cross multiply
    21,789.93x = 32,656.18 × 8,635.13
  4. Step 4: Simplify right side
    21,789.93x = 281,990,359.60
  5. Step 5: Solve for x
    x = 281,990,359.60/21,789.93
  6. Step 6: Final answer
    x = 12,941.32

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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.