Home / 25,401.12-35,031.84-15,327.42

Finding the Fourth Proportional to 25,401.12, 35,031.84 and 15,327.42

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Solution

The fourth proportional to 25,401.12, 35,031.84 and 15,327.42 is: 21,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.12 : 35,031.84 = 15,327.42 : x
  2. Step 2: Convert to fraction form
    25,401.12/35,031.84 = 15,327.42/x
  3. Step 3: Cross multiply
    25,401.12x = 35,031.84 × 15,327.42
  4. Step 4: Simplify right side
    25,401.12x = 536,947,725.05
  5. Step 5: Solve for x
    x = 536,947,725.05/25,401.12
  6. Step 6: Final answer
    x = 21,138.74

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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.