Home / 25,609.75-35,343.78-15,540.74

Finding the Fourth Proportional to 25,609.75, 35,343.78 and 15,540.74

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Solution

The fourth proportional to 25,609.75, 35,343.78 and 15,540.74 is: 21,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,609.75 : 35,343.78 = 15,540.74 : x
  2. Step 2: Convert to fraction form
    25,609.75/35,343.78 = 15,540.74/x
  3. Step 3: Cross multiply
    25,609.75x = 35,343.78 × 15,540.74
  4. Step 4: Simplify right side
    25,609.75x = 549,268,417.89
  5. Step 5: Solve for x
    x = 549,268,417.89/25,609.75
  6. Step 6: Final answer
    x = 21,447.63

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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.