Home / 30,544.60-42,151.20-17,116.40

Finding the Fourth Proportional to 30,544.60, 42,151.20 and 17,116.40

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Solution

The fourth proportional to 30,544.60, 42,151.20 and 17,116.40 is: 23,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.60 : 42,151.20 = 17,116.40 : x
  2. Step 2: Convert to fraction form
    30,544.60/42,151.20 = 17,116.40/x
  3. Step 3: Cross multiply
    30,544.60x = 42,151.20 × 17,116.40
  4. Step 4: Simplify right side
    30,544.60x = 721,476,799.68
  5. Step 5: Solve for x
    x = 721,476,799.68/30,544.60
  6. Step 6: Final answer
    x = 23,620.44

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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.