Home / 21,040-29,034.57-11,480.08

Finding the Fourth Proportional to 21,040, 29,034.57 and 11,480.08

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Solution

The fourth proportional to 21,040, 29,034.57 and 11,480.08 is: 15,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040 : 29,034.57 = 11,480.08 : x
  2. Step 2: Convert to fraction form
    21,040/29,034.57 = 11,480.08/x
  3. Step 3: Cross multiply
    21,040x = 29,034.57 × 11,480.08
  4. Step 4: Simplify right side
    21,040x = 333,319,186.37
  5. Step 5: Solve for x
    x = 333,319,186.37/21,040
  6. Step 6: Final answer
    x = 15,842.17

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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.