Home / 26,820.81-40,231.23-9,290.64

Finding the Fourth Proportional to 26,820.81, 40,231.23 and 9,290.64

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Solution

The fourth proportional to 26,820.81, 40,231.23 and 9,290.64 is: 13,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,820.81 : 40,231.23 = 9,290.64 : x
  2. Step 2: Convert to fraction form
    26,820.81/40,231.23 = 9,290.64/x
  3. Step 3: Cross multiply
    26,820.81x = 40,231.23 × 9,290.64
  4. Step 4: Simplify right side
    26,820.81x = 373,773,874.69
  5. Step 5: Solve for x
    x = 373,773,874.69/26,820.81
  6. Step 6: Final answer
    x = 13,935.97

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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.