Home / 20,901.44-28,844.34-11,470.88

Finding the Fourth Proportional to 20,901.44, 28,844.34 and 11,470.88

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Solution

The fourth proportional to 20,901.44, 28,844.34 and 11,470.88 is: 15,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.44 : 28,844.34 = 11,470.88 : x
  2. Step 2: Convert to fraction form
    20,901.44/28,844.34 = 11,470.88/x
  3. Step 3: Cross multiply
    20,901.44x = 28,844.34 × 11,470.88
  4. Step 4: Simplify right side
    20,901.44x = 330,869,962.82
  5. Step 5: Solve for x
    x = 330,869,962.82/20,901.44
  6. Step 6: Final answer
    x = 15,830.01

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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.