Home / 20,356.77-28,092.28-11,282.71

Finding the Fourth Proportional to 20,356.77, 28,092.28 and 11,282.71

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Solution

The fourth proportional to 20,356.77, 28,092.28 and 11,282.71 is: 15,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.77 : 28,092.28 = 11,282.71 : x
  2. Step 2: Convert to fraction form
    20,356.77/28,092.28 = 11,282.71/x
  3. Step 3: Cross multiply
    20,356.77x = 28,092.28 × 11,282.71
  4. Step 4: Simplify right side
    20,356.77x = 316,957,048.48
  5. Step 5: Solve for x
    x = 316,957,048.48/20,356.77
  6. Step 6: Final answer
    x = 15,570.11

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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.