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Finding the Fourth Proportional to 26,730, 36,862.29 and 19,213.61

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Solution

The fourth proportional to 26,730, 36,862.29 and 19,213.61 is: 26,496.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,730 : 36,862.29 = 19,213.61 : x
  2. Step 2: Convert to fraction form
    26,730/36,862.29 = 19,213.61/x
  3. Step 3: Cross multiply
    26,730x = 36,862.29 × 19,213.61
  4. Step 4: Simplify right side
    26,730x = 708,257,479.46
  5. Step 5: Solve for x
    x = 708,257,479.46/26,730
  6. Step 6: Final answer
    x = 26,496.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.