Home / 21,921.11-30,254.06-12,362.95

Finding the Fourth Proportional to 21,921.11, 30,254.06 and 12,362.95

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Solution

The fourth proportional to 21,921.11, 30,254.06 and 12,362.95 is: 17,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.11 : 30,254.06 = 12,362.95 : x
  2. Step 2: Convert to fraction form
    21,921.11/30,254.06 = 12,362.95/x
  3. Step 3: Cross multiply
    21,921.11x = 30,254.06 × 12,362.95
  4. Step 4: Simplify right side
    21,921.11x = 374,029,386.35
  5. Step 5: Solve for x
    x = 374,029,386.35/21,921.11
  6. Step 6: Final answer
    x = 17,062.52

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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.