Home / 34,758.16-52,135.20-21,433.72

Finding the Fourth Proportional to 34,758.16, 52,135.20 and 21,433.72

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Solution

The fourth proportional to 34,758.16, 52,135.20 and 21,433.72 is: 32,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,758.16 : 52,135.20 = 21,433.72 : x
  2. Step 2: Convert to fraction form
    34,758.16/52,135.20 = 21,433.72/x
  3. Step 3: Cross multiply
    34,758.16x = 52,135.20 × 21,433.72
  4. Step 4: Simplify right side
    34,758.16x = 1,117,451,278.94
  5. Step 5: Solve for x
    x = 1,117,451,278.94/34,758.16
  6. Step 6: Final answer
    x = 32,149.32

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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.