Home / 25,531.80-35,238.10-14,919.38

Finding the Fourth Proportional to 25,531.80, 35,238.10 and 14,919.38

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Solution

The fourth proportional to 25,531.80, 35,238.10 and 14,919.38 is: 20,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.80 : 35,238.10 = 14,919.38 : x
  2. Step 2: Convert to fraction form
    25,531.80/35,238.10 = 14,919.38/x
  3. Step 3: Cross multiply
    25,531.80x = 35,238.10 × 14,919.38
  4. Step 4: Simplify right side
    25,531.80x = 525,730,604.38
  5. Step 5: Solve for x
    x = 525,730,604.38/25,531.80
  6. Step 6: Final answer
    x = 20,591.21

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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.