Home / 21,516.64-32,272.08-8,367.76

Finding the Fourth Proportional to 21,516.64, 32,272.08 and 8,367.76

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Solution

The fourth proportional to 21,516.64, 32,272.08 and 8,367.76 is: 12,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.64 : 32,272.08 = 8,367.76 : x
  2. Step 2: Convert to fraction form
    21,516.64/32,272.08 = 8,367.76/x
  3. Step 3: Cross multiply
    21,516.64x = 32,272.08 × 8,367.76
  4. Step 4: Simplify right side
    21,516.64x = 270,045,020.14
  5. Step 5: Solve for x
    x = 270,045,020.14/21,516.64
  6. Step 6: Final answer
    x = 12,550.52

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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.