Home / 21,022.39-29,010.72-11,590.75

Finding the Fourth Proportional to 21,022.39, 29,010.72 and 11,590.75

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Solution

The fourth proportional to 21,022.39, 29,010.72 and 11,590.75 is: 15,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.39 : 29,010.72 = 11,590.75 : x
  2. Step 2: Convert to fraction form
    21,022.39/29,010.72 = 11,590.75/x
  3. Step 3: Cross multiply
    21,022.39x = 29,010.72 × 11,590.75
  4. Step 4: Simplify right side
    21,022.39x = 336,256,002.84
  5. Step 5: Solve for x
    x = 336,256,002.84/21,022.39
  6. Step 6: Final answer
    x = 15,995.14

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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.