Home / 20,134.25-27,785.63-11,182.58

Finding the Fourth Proportional to 20,134.25, 27,785.63 and 11,182.58

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Solution

The fourth proportional to 20,134.25, 27,785.63 and 11,182.58 is: 15,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.25 : 27,785.63 = 11,182.58 : x
  2. Step 2: Convert to fraction form
    20,134.25/27,785.63 = 11,182.58/x
  3. Step 3: Cross multiply
    20,134.25x = 27,785.63 × 11,182.58
  4. Step 4: Simplify right side
    20,134.25x = 310,715,030.33
  5. Step 5: Solve for x
    x = 310,715,030.33/20,134.25
  6. Step 6: Final answer
    x = 15,432.16

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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.