Home / 22,280.16-30,747.84-12,208.32

Finding the Fourth Proportional to 22,280.16, 30,747.84 and 12,208.32

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Solution

The fourth proportional to 22,280.16, 30,747.84 and 12,208.32 is: 16,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.16 : 30,747.84 = 12,208.32 : x
  2. Step 2: Convert to fraction form
    22,280.16/30,747.84 = 12,208.32/x
  3. Step 3: Cross multiply
    22,280.16x = 30,747.84 × 12,208.32
  4. Step 4: Simplify right side
    22,280.16x = 375,379,470.03
  5. Step 5: Solve for x
    x = 375,379,470.03/22,280.16
  6. Step 6: Final answer
    x = 16,848.15

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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.