Home / 22,216.65-33,314.18-12,345.45

Finding the Fourth Proportional to 22,216.65, 33,314.18 and 12,345.45

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Solution

The fourth proportional to 22,216.65, 33,314.18 and 12,345.45 is: 18,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,216.65 : 33,314.18 = 12,345.45 : x
  2. Step 2: Convert to fraction form
    22,216.65/33,314.18 = 12,345.45/x
  3. Step 3: Cross multiply
    22,216.65x = 33,314.18 × 12,345.45
  4. Step 4: Simplify right side
    22,216.65x = 411,278,481.75
  5. Step 5: Solve for x
    x = 411,278,481.75/22,216.65
  6. Step 6: Final answer
    x = 18,512.17

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1.5x scale

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.