Home / 25,781.24-35,577.50-15,025.40

Finding the Fourth Proportional to 25,781.24, 35,577.50 and 15,025.40

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Solution

The fourth proportional to 25,781.24, 35,577.50 and 15,025.40 is: 20,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.24 : 35,577.50 = 15,025.40 : x
  2. Step 2: Convert to fraction form
    25,781.24/35,577.50 = 15,025.40/x
  3. Step 3: Cross multiply
    25,781.24x = 35,577.50 × 15,025.40
  4. Step 4: Simplify right side
    25,781.24x = 534,566,168.50
  5. Step 5: Solve for x
    x = 534,566,168.50/25,781.24
  6. Step 6: Final answer
    x = 20,734.70

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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.