Home / 25,884.88-35,728.24-15,139.04

Finding the Fourth Proportional to 25,884.88, 35,728.24 and 15,139.04

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Solution

The fourth proportional to 25,884.88, 35,728.24 and 15,139.04 is: 20,896.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,884.88 : 35,728.24 = 15,139.04 : x
  2. Step 2: Convert to fraction form
    25,884.88/35,728.24 = 15,139.04/x
  3. Step 3: Cross multiply
    25,884.88x = 35,728.24 × 15,139.04
  4. Step 4: Simplify right side
    25,884.88x = 540,891,254.49
  5. Step 5: Solve for x
    x = 540,891,254.49/25,884.88
  6. Step 6: Final answer
    x = 20,896.03

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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.