Home / 26,880.96-40,321.50-7,159.49

Finding the Fourth Proportional to 26,880.96, 40,321.50 and 7,159.49

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Solution

The fourth proportional to 26,880.96, 40,321.50 and 7,159.49 is: 10,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.96 : 40,321.50 = 7,159.49 : x
  2. Step 2: Convert to fraction form
    26,880.96/40,321.50 = 7,159.49/x
  3. Step 3: Cross multiply
    26,880.96x = 40,321.50 × 7,159.49
  4. Step 4: Simplify right side
    26,880.96x = 288,681,298.79
  5. Step 5: Solve for x
    x = 288,681,298.79/26,880.96
  6. Step 6: Final answer
    x = 10,739.25

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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.