Home / 21,040.44-29,001.69-19,859.46

Finding the Fourth Proportional to 21,040.44, 29,001.69 and 19,859.46

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Solution

The fourth proportional to 21,040.44, 29,001.69 and 19,859.46 is: 27,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.44 : 29,001.69 = 19,859.46 : x
  2. Step 2: Convert to fraction form
    21,040.44/29,001.69 = 19,859.46/x
  3. Step 3: Cross multiply
    21,040.44x = 29,001.69 × 19,859.46
  4. Step 4: Simplify right side
    21,040.44x = 575,957,902.49
  5. Step 5: Solve for x
    x = 575,957,902.49/21,040.44
  6. Step 6: Final answer
    x = 27,373.85

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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.