Home / 25,799.40-35,599.78-15,186.92

Finding the Fourth Proportional to 25,799.40, 35,599.78 and 15,186.92

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Solution

The fourth proportional to 25,799.40, 35,599.78 and 15,186.92 is: 20,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,799.40 : 35,599.78 = 15,186.92 : x
  2. Step 2: Convert to fraction form
    25,799.40/35,599.78 = 15,186.92/x
  3. Step 3: Cross multiply
    25,799.40x = 35,599.78 × 15,186.92
  4. Step 4: Simplify right side
    25,799.40x = 540,651,010.88
  5. Step 5: Solve for x
    x = 540,651,010.88/25,799.40
  6. Step 6: Final answer
    x = 20,955.95

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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.