Home / 22,431.44-30,731.19-21,590.66

Finding the Fourth Proportional to 22,431.44, 30,731.19 and 21,590.66

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Solution

The fourth proportional to 22,431.44, 30,731.19 and 21,590.66 is: 29,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.44 : 30,731.19 = 21,590.66 : x
  2. Step 2: Convert to fraction form
    22,431.44/30,731.19 = 21,590.66/x
  3. Step 3: Cross multiply
    22,431.44x = 30,731.19 × 21,590.66
  4. Step 4: Simplify right side
    22,431.44x = 663,506,566.73
  5. Step 5: Solve for x
    x = 663,506,566.73/22,431.44
  6. Step 6: Final answer
    x = 29,579.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.