Home / 20,897.44-31,356.92-13,882.29

Finding the Fourth Proportional to 20,897.44, 31,356.92 and 13,882.29

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Solution

The fourth proportional to 20,897.44, 31,356.92 and 13,882.29 is: 20,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.44 : 31,356.92 = 13,882.29 : x
  2. Step 2: Convert to fraction form
    20,897.44/31,356.92 = 13,882.29/x
  3. Step 3: Cross multiply
    20,897.44x = 31,356.92 × 13,882.29
  4. Step 4: Simplify right side
    20,897.44x = 435,305,774.06
  5. Step 5: Solve for x
    x = 435,305,774.06/20,897.44
  6. Step 6: Final answer
    x = 20,830.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.