Home / 25,885.88-35,729.62-15,140.04

Finding the Fourth Proportional to 25,885.88, 35,729.62 and 15,140.04

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Solution

The fourth proportional to 25,885.88, 35,729.62 and 15,140.04 is: 20,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,885.88 : 35,729.62 = 15,140.04 : x
  2. Step 2: Convert to fraction form
    25,885.88/35,729.62 = 15,140.04/x
  3. Step 3: Cross multiply
    25,885.88x = 35,729.62 × 15,140.04
  4. Step 4: Simplify right side
    25,885.88x = 540,947,875.98
  5. Step 5: Solve for x
    x = 540,947,875.98/25,885.88
  6. Step 6: Final answer
    x = 20,897.41

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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.