Home / 21,132.05-31,655.70-10,049.42

Finding the Fourth Proportional to 21,132.05, 31,655.70 and 10,049.42

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Solution

The fourth proportional to 21,132.05, 31,655.70 and 10,049.42 is: 15,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.05 : 31,655.70 = 10,049.42 : x
  2. Step 2: Convert to fraction form
    21,132.05/31,655.70 = 10,049.42/x
  3. Step 3: Cross multiply
    21,132.05x = 31,655.70 × 10,049.42
  4. Step 4: Simplify right side
    21,132.05x = 318,121,424.69
  5. Step 5: Solve for x
    x = 318,121,424.69/21,132.05
  6. Step 6: Final answer
    x = 15,053.98

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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.