Home / 21,026.78-29,016.36-11,595.35

Finding the Fourth Proportional to 21,026.78, 29,016.36 and 11,595.35

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Solution

The fourth proportional to 21,026.78, 29,016.36 and 11,595.35 is: 16,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.78 : 29,016.36 = 11,595.35 : x
  2. Step 2: Convert to fraction form
    21,026.78/29,016.36 = 11,595.35/x
  3. Step 3: Cross multiply
    21,026.78x = 29,016.36 × 11,595.35
  4. Step 4: Simplify right side
    21,026.78x = 336,454,849.93
  5. Step 5: Solve for x
    x = 336,454,849.93/21,026.78
  6. Step 6: Final answer
    x = 16,001.25

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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.