Home / 25,615.38-35,343.22-15,543.58

Finding the Fourth Proportional to 25,615.38, 35,343.22 and 15,543.58

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Solution

The fourth proportional to 25,615.38, 35,343.22 and 15,543.58 is: 21,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.38 : 35,343.22 = 15,543.58 : x
  2. Step 2: Convert to fraction form
    25,615.38/35,343.22 = 15,543.58/x
  3. Step 3: Cross multiply
    25,615.38x = 35,343.22 × 15,543.58
  4. Step 4: Simplify right side
    25,615.38x = 549,360,167.53
  5. Step 5: Solve for x
    x = 549,360,167.53/25,615.38
  6. Step 6: Final answer
    x = 21,446.50

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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.