Home / 26,931.42-40,397.78-9,162.05

Finding the Fourth Proportional to 26,931.42, 40,397.78 and 9,162.05

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Solution

The fourth proportional to 26,931.42, 40,397.78 and 9,162.05 is: 13,743.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.42 : 40,397.78 = 9,162.05 : x
  2. Step 2: Convert to fraction form
    26,931.42/40,397.78 = 9,162.05/x
  3. Step 3: Cross multiply
    26,931.42x = 40,397.78 × 9,162.05
  4. Step 4: Simplify right side
    26,931.42x = 370,126,301.17
  5. Step 5: Solve for x
    x = 370,126,301.17/26,931.42
  6. Step 6: Final answer
    x = 13,743.29

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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.