Home / 22,388.04-30,898.98-12,828.24

Finding the Fourth Proportional to 22,388.04, 30,898.98 and 12,828.24

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Solution

The fourth proportional to 22,388.04, 30,898.98 and 12,828.24 is: 17,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388.04 : 30,898.98 = 12,828.24 : x
  2. Step 2: Convert to fraction form
    22,388.04/30,898.98 = 12,828.24/x
  3. Step 3: Cross multiply
    22,388.04x = 30,898.98 × 12,828.24
  4. Step 4: Simplify right side
    22,388.04x = 396,379,531.20
  5. Step 5: Solve for x
    x = 396,379,531.20/22,388.04
  6. Step 6: Final answer
    x = 17,704.97

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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.