Home / 25,761.78-38,610.34-13,915.06

Finding the Fourth Proportional to 25,761.78, 38,610.34 and 13,915.06

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Solution

The fourth proportional to 25,761.78, 38,610.34 and 13,915.06 is: 20,855.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,761.78 : 38,610.34 = 13,915.06 : x
  2. Step 2: Convert to fraction form
    25,761.78/38,610.34 = 13,915.06/x
  3. Step 3: Cross multiply
    25,761.78x = 38,610.34 × 13,915.06
  4. Step 4: Simplify right side
    25,761.78x = 537,265,066.41
  5. Step 5: Solve for x
    x = 537,265,066.41/25,761.78
  6. Step 6: Final answer
    x = 20,855.12

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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.