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Finding the Fourth Proportional to 34,920.57, 52,381.11 and 9,960.57

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Solution

The fourth proportional to 34,920.57, 52,381.11 and 9,960.57 is: 14,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,920.57 : 52,381.11 = 9,960.57 : x
  2. Step 2: Convert to fraction form
    34,920.57/52,381.11 = 9,960.57/x
  3. Step 3: Cross multiply
    34,920.57x = 52,381.11 × 9,960.57
  4. Step 4: Simplify right side
    34,920.57x = 521,745,712.83
  5. Step 5: Solve for x
    x = 521,745,712.83/34,920.57
  6. Step 6: Final answer
    x = 14,940.93

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1.5x scale

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.