Home / 21,956.24-32,931.12-8,102

Finding the Fourth Proportional to 21,956.24, 32,931.12 and 8,102

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Solution

The fourth proportional to 21,956.24, 32,931.12 and 8,102 is: 12,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.24 : 32,931.12 = 8,102 : x
  2. Step 2: Convert to fraction form
    21,956.24/32,931.12 = 8,102/x
  3. Step 3: Cross multiply
    21,956.24x = 32,931.12 × 8,102
  4. Step 4: Simplify right side
    21,956.24x = 266,807,934.24
  5. Step 5: Solve for x
    x = 266,807,934.24/21,956.24
  6. Step 6: Final answer
    x = 12,151.80

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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.