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Finding the Fourth Proportional to 17,877.65, 24,671.21 and 9,919.89

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Solution

The fourth proportional to 17,877.65, 24,671.21 and 9,919.89 is: 13,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.65 : 24,671.21 = 9,919.89 : x
  2. Step 2: Convert to fraction form
    17,877.65/24,671.21 = 9,919.89/x
  3. Step 3: Cross multiply
    17,877.65x = 24,671.21 × 9,919.89
  4. Step 4: Simplify right side
    17,877.65x = 244,735,639.77
  5. Step 5: Solve for x
    x = 244,735,639.77/17,877.65
  6. Step 6: Final answer
    x = 13,689.48

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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.