Home / 20,030.88-27,642.44-11,079.04

Finding the Fourth Proportional to 20,030.88, 27,642.44 and 11,079.04

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Solution

The fourth proportional to 20,030.88, 27,642.44 and 11,079.04 is: 15,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.88 : 27,642.44 = 11,079.04 : x
  2. Step 2: Convert to fraction form
    20,030.88/27,642.44 = 11,079.04/x
  3. Step 3: Cross multiply
    20,030.88x = 27,642.44 × 11,079.04
  4. Step 4: Simplify right side
    20,030.88x = 306,251,698.46
  5. Step 5: Solve for x
    x = 306,251,698.46/20,030.88
  6. Step 6: Final answer
    x = 15,288.98

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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.