Home / 30,726.68-42,403.11-17,295.33

Finding the Fourth Proportional to 30,726.68, 42,403.11 and 17,295.33

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Solution

The fourth proportional to 30,726.68, 42,403.11 and 17,295.33 is: 23,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.68 : 42,403.11 = 17,295.33 : x
  2. Step 2: Convert to fraction form
    30,726.68/42,403.11 = 17,295.33/x
  3. Step 3: Cross multiply
    30,726.68x = 42,403.11 × 17,295.33
  4. Step 4: Simplify right side
    30,726.68x = 733,375,780.48
  5. Step 5: Solve for x
    x = 733,375,780.48/30,726.68
  6. Step 6: Final answer
    x = 23,867.72

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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.