Home / 25,656.20-35,410.16-15,308.61

Finding the Fourth Proportional to 25,656.20, 35,410.16 and 15,308.61

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Solution

The fourth proportional to 25,656.20, 35,410.16 and 15,308.61 is: 21,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,656.20 : 35,410.16 = 15,308.61 : x
  2. Step 2: Convert to fraction form
    25,656.20/35,410.16 = 15,308.61/x
  3. Step 3: Cross multiply
    25,656.20x = 35,410.16 × 15,308.61
  4. Step 4: Simplify right side
    25,656.20x = 542,080,329.48
  5. Step 5: Solve for x
    x = 542,080,329.48/25,656.20
  6. Step 6: Final answer
    x = 21,128.63

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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.