Home / 20,322.78-27,986.92-16,753.17

Finding the Fourth Proportional to 20,322.78, 27,986.92 and 16,753.17

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Solution

The fourth proportional to 20,322.78, 27,986.92 and 16,753.17 is: 23,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.78 : 27,986.92 = 16,753.17 : x
  2. Step 2: Convert to fraction form
    20,322.78/27,986.92 = 16,753.17/x
  3. Step 3: Cross multiply
    20,322.78x = 27,986.92 × 16,753.17
  4. Step 4: Simplify right side
    20,322.78x = 468,869,628.54
  5. Step 5: Solve for x
    x = 468,869,628.54/20,322.78
  6. Step 6: Final answer
    x = 23,071.14

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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.