Home / 20,897.83-31,317.28-11,542.06

Finding the Fourth Proportional to 20,897.83, 31,317.28 and 11,542.06

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Solution

The fourth proportional to 20,897.83, 31,317.28 and 11,542.06 is: 17,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.83 : 31,317.28 = 11,542.06 : x
  2. Step 2: Convert to fraction form
    20,897.83/31,317.28 = 11,542.06/x
  3. Step 3: Cross multiply
    20,897.83x = 31,317.28 × 11,542.06
  4. Step 4: Simplify right side
    20,897.83x = 361,465,924.80
  5. Step 5: Solve for x
    x = 361,465,924.80/20,897.83
  6. Step 6: Final answer
    x = 17,296.82

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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.