Home / 22,999.08-31,737.78-12,789.72

Finding the Fourth Proportional to 22,999.08, 31,737.78 and 12,789.72

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Solution

The fourth proportional to 22,999.08, 31,737.78 and 12,789.72 is: 17,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.08 : 31,737.78 = 12,789.72 : x
  2. Step 2: Convert to fraction form
    22,999.08/31,737.78 = 12,789.72/x
  3. Step 3: Cross multiply
    22,999.08x = 31,737.78 × 12,789.72
  4. Step 4: Simplify right side
    22,999.08x = 405,917,319.62
  5. Step 5: Solve for x
    x = 405,917,319.62/22,999.08
  6. Step 6: Final answer
    x = 17,649.29

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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.