Home / 21,022.56-29,010.96-11,590.80

Finding the Fourth Proportional to 21,022.56, 29,010.96 and 11,590.80

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Solution

The fourth proportional to 21,022.56, 29,010.96 and 11,590.80 is: 15,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.56 : 29,010.96 = 11,590.80 : x
  2. Step 2: Convert to fraction form
    21,022.56/29,010.96 = 11,590.80/x
  3. Step 3: Cross multiply
    21,022.56x = 29,010.96 × 11,590.80
  4. Step 4: Simplify right side
    21,022.56x = 336,260,235.17
  5. Step 5: Solve for x
    x = 336,260,235.17/21,022.56
  6. Step 6: Final answer
    x = 15,995.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.