Home / 30,488.66-42,076.40-17,059.16

Finding the Fourth Proportional to 30,488.66, 42,076.40 and 17,059.16

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Solution

The fourth proportional to 30,488.66, 42,076.40 and 17,059.16 is: 23,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.66 : 42,076.40 = 17,059.16 : x
  2. Step 2: Convert to fraction form
    30,488.66/42,076.40 = 17,059.16/x
  3. Step 3: Cross multiply
    30,488.66x = 42,076.40 × 17,059.16
  4. Step 4: Simplify right side
    30,488.66x = 717,787,744.15
  5. Step 5: Solve for x
    x = 717,787,744.15/30,488.66
  6. Step 6: Final answer
    x = 23,542.78

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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.