Home / 25,860.12-35,689.04-15,108.45

Finding the Fourth Proportional to 25,860.12, 35,689.04 and 15,108.45

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Solution

The fourth proportional to 25,860.12, 35,689.04 and 15,108.45 is: 20,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.12 : 35,689.04 = 15,108.45 : x
  2. Step 2: Convert to fraction form
    25,860.12/35,689.04 = 15,108.45/x
  3. Step 3: Cross multiply
    25,860.12x = 35,689.04 × 15,108.45
  4. Step 4: Simplify right side
    25,860.12x = 539,206,076.39
  5. Step 5: Solve for x
    x = 539,206,076.39/25,860.12
  6. Step 6: Final answer
    x = 20,850.87

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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.