Home / 20,032.76-27,642.81-11,079.05

Finding the Fourth Proportional to 20,032.76, 27,642.81 and 11,079.05

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Solution

The fourth proportional to 20,032.76, 27,642.81 and 11,079.05 is: 15,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.76 : 27,642.81 = 11,079.05 : x
  2. Step 2: Convert to fraction form
    20,032.76/27,642.81 = 11,079.05/x
  3. Step 3: Cross multiply
    20,032.76x = 27,642.81 × 11,079.05
  4. Step 4: Simplify right side
    20,032.76x = 306,255,935.92
  5. Step 5: Solve for x
    x = 306,255,935.92/20,032.76
  6. Step 6: Final answer
    x = 15,287.76

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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.