Home / 20,886.27-28,823.63-11,935.23

Finding the Fourth Proportional to 20,886.27, 28,823.63 and 11,935.23

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Solution

The fourth proportional to 20,886.27, 28,823.63 and 11,935.23 is: 16,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.27 : 28,823.63 = 11,935.23 : x
  2. Step 2: Convert to fraction form
    20,886.27/28,823.63 = 11,935.23/x
  3. Step 3: Cross multiply
    20,886.27x = 28,823.63 × 11,935.23
  4. Step 4: Simplify right side
    20,886.27x = 344,016,593.81
  5. Step 5: Solve for x
    x = 344,016,593.81/20,886.27
  6. Step 6: Final answer
    x = 16,470.94

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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.