Home / 26,159.08-36,113.30-20,998.43

Finding the Fourth Proportional to 26,159.08, 36,113.30 and 20,998.43

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Solution

The fourth proportional to 26,159.08, 36,113.30 and 20,998.43 is: 28,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,159.08 : 36,113.30 = 20,998.43 : x
  2. Step 2: Convert to fraction form
    26,159.08/36,113.30 = 20,998.43/x
  3. Step 3: Cross multiply
    26,159.08x = 36,113.30 × 20,998.43
  4. Step 4: Simplify right side
    26,159.08x = 758,322,744.90
  5. Step 5: Solve for x
    x = 758,322,744.90/26,159.08
  6. Step 6: Final answer
    x = 28,988.89

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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.