Home / 21,913.92-32,879.79-10,219.95

Finding the Fourth Proportional to 21,913.92, 32,879.79 and 10,219.95

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Solution

The fourth proportional to 21,913.92, 32,879.79 and 10,219.95 is: 15,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.92 : 32,879.79 = 10,219.95 : x
  2. Step 2: Convert to fraction form
    21,913.92/32,879.79 = 10,219.95/x
  3. Step 3: Cross multiply
    21,913.92x = 32,879.79 × 10,219.95
  4. Step 4: Simplify right side
    21,913.92x = 336,029,809.81
  5. Step 5: Solve for x
    x = 336,029,809.81/21,913.92
  6. Step 6: Final answer
    x = 15,334.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.