Home / 20,941.43-31,382.33-10,401.12

Finding the Fourth Proportional to 20,941.43, 31,382.33 and 10,401.12

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Solution

The fourth proportional to 20,941.43, 31,382.33 and 10,401.12 is: 15,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.43 : 31,382.33 = 10,401.12 : x
  2. Step 2: Convert to fraction form
    20,941.43/31,382.33 = 10,401.12/x
  3. Step 3: Cross multiply
    20,941.43x = 31,382.33 × 10,401.12
  4. Step 4: Simplify right side
    20,941.43x = 326,411,367.43
  5. Step 5: Solve for x
    x = 326,411,367.43/20,941.43
  6. Step 6: Final answer
    x = 15,586.87

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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.