Home / 26,931.24-40,398.35-8,211.89

Finding the Fourth Proportional to 26,931.24, 40,398.35 and 8,211.89

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Solution

The fourth proportional to 26,931.24, 40,398.35 and 8,211.89 is: 12,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.24 : 40,398.35 = 8,211.89 : x
  2. Step 2: Convert to fraction form
    26,931.24/40,398.35 = 8,211.89/x
  3. Step 3: Cross multiply
    26,931.24x = 40,398.35 × 8,211.89
  4. Step 4: Simplify right side
    26,931.24x = 331,746,806.38
  5. Step 5: Solve for x
    x = 331,746,806.38/26,931.24
  6. Step 6: Final answer
    x = 12,318.29

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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.