Home / 25,445.22-35,113.57-15,371.90

Finding the Fourth Proportional to 25,445.22, 35,113.57 and 15,371.90

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Solution

The fourth proportional to 25,445.22, 35,113.57 and 15,371.90 is: 21,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,445.22 : 35,113.57 = 15,371.90 : x
  2. Step 2: Convert to fraction form
    25,445.22/35,113.57 = 15,371.90/x
  3. Step 3: Cross multiply
    25,445.22x = 35,113.57 × 15,371.90
  4. Step 4: Simplify right side
    25,445.22x = 539,762,286.68
  5. Step 5: Solve for x
    x = 539,762,286.68/25,445.22
  6. Step 6: Final answer
    x = 21,212.72

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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.