Home / 25,634.80-35,375.16-15,031.45

Finding the Fourth Proportional to 25,634.80, 35,375.16 and 15,031.45

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Solution

The fourth proportional to 25,634.80, 35,375.16 and 15,031.45 is: 20,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,634.80 : 35,375.16 = 15,031.45 : x
  2. Step 2: Convert to fraction form
    25,634.80/35,375.16 = 15,031.45/x
  3. Step 3: Cross multiply
    25,634.80x = 35,375.16 × 15,031.45
  4. Step 4: Simplify right side
    25,634.80x = 531,739,948.78
  5. Step 5: Solve for x
    x = 531,739,948.78/25,634.80
  6. Step 6: Final answer
    x = 20,742.89

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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.