Home / 21,929.96-30,264.10-11,993.96

Finding the Fourth Proportional to 21,929.96, 30,264.10 and 11,993.96

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Solution

The fourth proportional to 21,929.96, 30,264.10 and 11,993.96 is: 16,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.96 : 30,264.10 = 11,993.96 : x
  2. Step 2: Convert to fraction form
    21,929.96/30,264.10 = 11,993.96/x
  3. Step 3: Cross multiply
    21,929.96x = 30,264.10 × 11,993.96
  4. Step 4: Simplify right side
    21,929.96x = 362,986,404.84
  5. Step 5: Solve for x
    x = 362,986,404.84/21,929.96
  6. Step 6: Final answer
    x = 16,552.08

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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.