Home / 30,282.32-41,753.85-20,726.81

Finding the Fourth Proportional to 30,282.32, 41,753.85 and 20,726.81

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Solution

The fourth proportional to 30,282.32, 41,753.85 and 20,726.81 is: 28,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.32 : 41,753.85 = 20,726.81 : x
  2. Step 2: Convert to fraction form
    30,282.32/41,753.85 = 20,726.81/x
  3. Step 3: Cross multiply
    30,282.32x = 41,753.85 × 20,726.81
  4. Step 4: Simplify right side
    30,282.32x = 865,424,115.72
  5. Step 5: Solve for x
    x = 865,424,115.72/30,282.32
  6. Step 6: Final answer
    x = 28,578.53

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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.