Home / 19,916.70-29,885.13-8,830.62

Finding the Fourth Proportional to 19,916.70, 29,885.13 and 8,830.62

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Solution

The fourth proportional to 19,916.70, 29,885.13 and 8,830.62 is: 13,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.70 : 29,885.13 = 8,830.62 : x
  2. Step 2: Convert to fraction form
    19,916.70/29,885.13 = 8,830.62/x
  3. Step 3: Cross multiply
    19,916.70x = 29,885.13 × 8,830.62
  4. Step 4: Simplify right side
    19,916.70x = 263,904,226.68
  5. Step 5: Solve for x
    x = 263,904,226.68/19,916.70
  6. Step 6: Final answer
    x = 13,250.40

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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.