Home / 20,876.43-31,314.29-7,025.43

Finding the Fourth Proportional to 20,876.43, 31,314.29 and 7,025.43

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Solution

The fourth proportional to 20,876.43, 31,314.29 and 7,025.43 is: 10,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.43 : 31,314.29 = 7,025.43 : x
  2. Step 2: Convert to fraction form
    20,876.43/31,314.29 = 7,025.43/x
  3. Step 3: Cross multiply
    20,876.43x = 31,314.29 × 7,025.43
  4. Step 4: Simplify right side
    20,876.43x = 219,996,317.27
  5. Step 5: Solve for x
    x = 219,996,317.27/20,876.43
  6. Step 6: Final answer
    x = 10,538.02

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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.