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Finding the Fourth Proportional to 26,159.40, 36,073.08 and 20,484

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Solution

The fourth proportional to 26,159.40, 36,073.08 and 20,484 is: 28,246.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,159.40 : 36,073.08 = 20,484 : x
  2. Step 2: Convert to fraction form
    26,159.40/36,073.08 = 20,484/x
  3. Step 3: Cross multiply
    26,159.40x = 36,073.08 × 20,484
  4. Step 4: Simplify right side
    26,159.40x = 738,920,970.72
  5. Step 5: Solve for x
    x = 738,920,970.72/26,159.40
  6. Step 6: Final answer
    x = 28,246.86

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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.