Home / 21,872.18-32,758.94-10,160.76

Finding the Fourth Proportional to 21,872.18, 32,758.94 and 10,160.76

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Solution

The fourth proportional to 21,872.18, 32,758.94 and 10,160.76 is: 15,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872.18 : 32,758.94 = 10,160.76 : x
  2. Step 2: Convert to fraction form
    21,872.18/32,758.94 = 10,160.76/x
  3. Step 3: Cross multiply
    21,872.18x = 32,758.94 × 10,160.76
  4. Step 4: Simplify right side
    21,872.18x = 332,855,727.19
  5. Step 5: Solve for x
    x = 332,855,727.19/21,872.18
  6. Step 6: Final answer
    x = 15,218.22

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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.