Home / 26,690.22-40,041.06-7,971.72

Finding the Fourth Proportional to 26,690.22, 40,041.06 and 7,971.72

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Solution

The fourth proportional to 26,690.22, 40,041.06 and 7,971.72 is: 11,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.22 : 40,041.06 = 7,971.72 : x
  2. Step 2: Convert to fraction form
    26,690.22/40,041.06 = 7,971.72/x
  3. Step 3: Cross multiply
    26,690.22x = 40,041.06 × 7,971.72
  4. Step 4: Simplify right side
    26,690.22x = 319,196,118.82
  5. Step 5: Solve for x
    x = 319,196,118.82/26,690.22
  6. Step 6: Final answer
    x = 11,959.29

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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.