Home / 30,282.45-41,754.02-20,726.94

Finding the Fourth Proportional to 30,282.45, 41,754.02 and 20,726.94

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Solution

The fourth proportional to 30,282.45, 41,754.02 and 20,726.94 is: 28,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.45 : 41,754.02 = 20,726.94 : x
  2. Step 2: Convert to fraction form
    30,282.45/41,754.02 = 20,726.94/x
  3. Step 3: Cross multiply
    30,282.45x = 41,754.02 × 20,726.94
  4. Step 4: Simplify right side
    30,282.45x = 865,433,067.30
  5. Step 5: Solve for x
    x = 865,433,067.30/30,282.45
  6. Step 6: Final answer
    x = 28,578.70

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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.