Home / 25,915.77-35,757.72-15,306.98

Finding the Fourth Proportional to 25,915.77, 35,757.72 and 15,306.98

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Solution

The fourth proportional to 25,915.77, 35,757.72 and 15,306.98 is: 21,120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.77 : 35,757.72 = 15,306.98 : x
  2. Step 2: Convert to fraction form
    25,915.77/35,757.72 = 15,306.98/x
  3. Step 3: Cross multiply
    25,915.77x = 35,757.72 × 15,306.98
  4. Step 4: Simplify right side
    25,915.77x = 547,342,526.10
  5. Step 5: Solve for x
    x = 547,342,526.10/25,915.77
  6. Step 6: Final answer
    x = 21,120.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.