Home / 30,103.53-41,543.18-18,164.58

Finding the Fourth Proportional to 30,103.53, 41,543.18 and 18,164.58

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Solution

The fourth proportional to 30,103.53, 41,543.18 and 18,164.58 is: 25,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.53 : 41,543.18 = 18,164.58 : x
  2. Step 2: Convert to fraction form
    30,103.53/41,543.18 = 18,164.58/x
  3. Step 3: Cross multiply
    30,103.53x = 41,543.18 × 18,164.58
  4. Step 4: Simplify right side
    30,103.53x = 754,614,325.74
  5. Step 5: Solve for x
    x = 754,614,325.74/30,103.53
  6. Step 6: Final answer
    x = 25,067.30

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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.