Home / 21,379.76-32,070.20-10,132.46

Finding the Fourth Proportional to 21,379.76, 32,070.20 and 10,132.46

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Solution

The fourth proportional to 21,379.76, 32,070.20 and 10,132.46 is: 15,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.76 : 32,070.20 = 10,132.46 : x
  2. Step 2: Convert to fraction form
    21,379.76/32,070.20 = 10,132.46/x
  3. Step 3: Cross multiply
    21,379.76x = 32,070.20 × 10,132.46
  4. Step 4: Simplify right side
    21,379.76x = 324,950,018.69
  5. Step 5: Solve for x
    x = 324,950,018.69/21,379.76
  6. Step 6: Final answer
    x = 15,198.96

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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.