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Finding the Fourth Proportional to 19,960.29, 29,940.72 and 9,569.61

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Solution

The fourth proportional to 19,960.29, 29,940.72 and 9,569.61 is: 14,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.29 : 29,940.72 = 9,569.61 : x
  2. Step 2: Convert to fraction form
    19,960.29/29,940.72 = 9,569.61/x
  3. Step 3: Cross multiply
    19,960.29x = 29,940.72 × 9,569.61
  4. Step 4: Simplify right side
    19,960.29x = 286,521,013.52
  5. Step 5: Solve for x
    x = 286,521,013.52/19,960.29
  6. Step 6: Final answer
    x = 14,354.55

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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.