Home / 21,143.26-31,691.13-10,040.86

Finding the Fourth Proportional to 21,143.26, 31,691.13 and 10,040.86

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Solution

The fourth proportional to 21,143.26, 31,691.13 and 10,040.86 is: 15,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143.26 : 31,691.13 = 10,040.86 : x
  2. Step 2: Convert to fraction form
    21,143.26/31,691.13 = 10,040.86/x
  3. Step 3: Cross multiply
    21,143.26x = 31,691.13 × 10,040.86
  4. Step 4: Simplify right side
    21,143.26x = 318,206,199.57
  5. Step 5: Solve for x
    x = 318,206,199.57/21,143.26
  6. Step 6: Final answer
    x = 15,050.01

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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.