Home / 20,876.13-31,317.84-11,023.70

Finding the Fourth Proportional to 20,876.13, 31,317.84 and 11,023.70

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Solution

The fourth proportional to 20,876.13, 31,317.84 and 11,023.70 is: 16,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.13 : 31,317.84 = 11,023.70 : x
  2. Step 2: Convert to fraction form
    20,876.13/31,317.84 = 11,023.70/x
  3. Step 3: Cross multiply
    20,876.13x = 31,317.84 × 11,023.70
  4. Step 4: Simplify right side
    20,876.13x = 345,238,316.22
  5. Step 5: Solve for x
    x = 345,238,316.22/20,876.13
  6. Step 6: Final answer
    x = 16,537.47

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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.