Home / 20,883.31-31,268.46-15,294.31

Finding the Fourth Proportional to 20,883.31, 31,268.46 and 15,294.31

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Solution

The fourth proportional to 20,883.31, 31,268.46 and 15,294.31 is: 22,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.31 : 31,268.46 = 15,294.31 : x
  2. Step 2: Convert to fraction form
    20,883.31/31,268.46 = 15,294.31/x
  3. Step 3: Cross multiply
    20,883.31x = 31,268.46 × 15,294.31
  4. Step 4: Simplify right side
    20,883.31x = 478,229,520.46
  5. Step 5: Solve for x
    x = 478,229,520.46/20,883.31
  6. Step 6: Final answer
    x = 22,900.08

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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.