Home / 21,126.55-31,682.52-10,025.71

Finding the Fourth Proportional to 21,126.55, 31,682.52 and 10,025.71

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Solution

The fourth proportional to 21,126.55, 31,682.52 and 10,025.71 is: 15,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.55 : 31,682.52 = 10,025.71 : x
  2. Step 2: Convert to fraction form
    21,126.55/31,682.52 = 10,025.71/x
  3. Step 3: Cross multiply
    21,126.55x = 31,682.52 × 10,025.71
  4. Step 4: Simplify right side
    21,126.55x = 317,639,757.59
  5. Step 5: Solve for x
    x = 317,639,757.59/21,126.55
  6. Step 6: Final answer
    x = 15,035.10

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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.