Home / 21,040.79-29,036.14-11,609.37

Finding the Fourth Proportional to 21,040.79, 29,036.14 and 11,609.37

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Solution

The fourth proportional to 21,040.79, 29,036.14 and 11,609.37 is: 16,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.79 : 29,036.14 = 11,609.37 : x
  2. Step 2: Convert to fraction form
    21,040.79/29,036.14 = 11,609.37/x
  3. Step 3: Cross multiply
    21,040.79x = 29,036.14 × 11,609.37
  4. Step 4: Simplify right side
    21,040.79x = 337,091,263.61
  5. Step 5: Solve for x
    x = 337,091,263.61/21,040.79
  6. Step 6: Final answer
    x = 16,020.85

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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.