Home / 21,534.16-32,314.92-11,145.91

Finding the Fourth Proportional to 21,534.16, 32,314.92 and 11,145.91

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Solution

The fourth proportional to 21,534.16, 32,314.92 and 11,145.91 is: 16,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.16 : 32,314.92 = 11,145.91 : x
  2. Step 2: Convert to fraction form
    21,534.16/32,314.92 = 11,145.91/x
  3. Step 3: Cross multiply
    21,534.16x = 32,314.92 × 11,145.91
  4. Step 4: Simplify right side
    21,534.16x = 360,179,189.98
  5. Step 5: Solve for x
    x = 360,179,189.98/21,534.16
  6. Step 6: Final answer
    x = 16,725.95

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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.