Home / 21,447.18-32,146.92-8,288.64

Finding the Fourth Proportional to 21,447.18, 32,146.92 and 8,288.64

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Solution

The fourth proportional to 21,447.18, 32,146.92 and 8,288.64 is: 12,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.18 : 32,146.92 = 8,288.64 : x
  2. Step 2: Convert to fraction form
    21,447.18/32,146.92 = 8,288.64/x
  3. Step 3: Cross multiply
    21,447.18x = 32,146.92 × 8,288.64
  4. Step 4: Simplify right side
    21,447.18x = 266,454,246.99
  5. Step 5: Solve for x
    x = 266,454,246.99/21,447.18
  6. Step 6: Final answer
    x = 12,423.74

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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.