Home / 22,019.58-30,386.97-11,947.95

Finding the Fourth Proportional to 22,019.58, 30,386.97 and 11,947.95

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Solution

The fourth proportional to 22,019.58, 30,386.97 and 11,947.95 is: 16,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019.58 : 30,386.97 = 11,947.95 : x
  2. Step 2: Convert to fraction form
    22,019.58/30,386.97 = 11,947.95/x
  3. Step 3: Cross multiply
    22,019.58x = 30,386.97 × 11,947.95
  4. Step 4: Simplify right side
    22,019.58x = 363,061,998.21
  5. Step 5: Solve for x
    x = 363,061,998.21/22,019.58
  6. Step 6: Final answer
    x = 16,488.14

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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.