Home / 21,335.76-29,443.26-11,904.34

Finding the Fourth Proportional to 21,335.76, 29,443.26 and 11,904.34

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Solution

The fourth proportional to 21,335.76, 29,443.26 and 11,904.34 is: 16,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.76 : 29,443.26 = 11,904.34 : x
  2. Step 2: Convert to fraction form
    21,335.76/29,443.26 = 11,904.34/x
  3. Step 3: Cross multiply
    21,335.76x = 29,443.26 × 11,904.34
  4. Step 4: Simplify right side
    21,335.76x = 350,502,577.75
  5. Step 5: Solve for x
    x = 350,502,577.75/21,335.76
  6. Step 6: Final answer
    x = 16,427.94

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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.