Home / 26,879.31-40,319.06-8,159.51

Finding the Fourth Proportional to 26,879.31, 40,319.06 and 8,159.51

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Solution

The fourth proportional to 26,879.31, 40,319.06 and 8,159.51 is: 12,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.31 : 40,319.06 = 8,159.51 : x
  2. Step 2: Convert to fraction form
    26,879.31/40,319.06 = 8,159.51/x
  3. Step 3: Cross multiply
    26,879.31x = 40,319.06 × 8,159.51
  4. Step 4: Simplify right side
    26,879.31x = 328,983,530.87
  5. Step 5: Solve for x
    x = 328,983,530.87/26,879.31
  6. Step 6: Final answer
    x = 12,239.28

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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.