Home / 20,873.57-31,314.44-7,726.05

Finding the Fourth Proportional to 20,873.57, 31,314.44 and 7,726.05

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Solution

The fourth proportional to 20,873.57, 31,314.44 and 7,726.05 is: 11,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.57 : 31,314.44 = 7,726.05 : x
  2. Step 2: Convert to fraction form
    20,873.57/31,314.44 = 7,726.05/x
  3. Step 3: Cross multiply
    20,873.57x = 31,314.44 × 7,726.05
  4. Step 4: Simplify right side
    20,873.57x = 241,936,948.48
  5. Step 5: Solve for x
    x = 241,936,948.48/20,873.57
  6. Step 6: Final answer
    x = 11,590.59

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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.