Home / 25,489.09-38,253.29-12,851.76

Finding the Fourth Proportional to 25,489.09, 38,253.29 and 12,851.76

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Solution

The fourth proportional to 25,489.09, 38,253.29 and 12,851.76 is: 19,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.09 : 38,253.29 = 12,851.76 : x
  2. Step 2: Convert to fraction form
    25,489.09/38,253.29 = 12,851.76/x
  3. Step 3: Cross multiply
    25,489.09x = 38,253.29 × 12,851.76
  4. Step 4: Simplify right side
    25,489.09x = 491,622,102.29
  5. Step 5: Solve for x
    x = 491,622,102.29/25,489.09
  6. Step 6: Final answer
    x = 19,287.55

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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.