Home / 23,101.32-31,879.45-13,029.78

Finding the Fourth Proportional to 23,101.32, 31,879.45 and 13,029.78

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Solution

The fourth proportional to 23,101.32, 31,879.45 and 13,029.78 is: 17,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.32 : 31,879.45 = 13,029.78 : x
  2. Step 2: Convert to fraction form
    23,101.32/31,879.45 = 13,029.78/x
  3. Step 3: Cross multiply
    23,101.32x = 31,879.45 × 13,029.78
  4. Step 4: Simplify right side
    23,101.32x = 415,382,220.02
  5. Step 5: Solve for x
    x = 415,382,220.02/23,101.32
  6. Step 6: Final answer
    x = 17,980.89

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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.