Home / 19,916.16-29,869.68-5,876.40

Finding the Fourth Proportional to 19,916.16, 29,869.68 and 5,876.40

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Solution

The fourth proportional to 19,916.16, 29,869.68 and 5,876.40 is: 8,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.16 : 29,869.68 = 5,876.40 : x
  2. Step 2: Convert to fraction form
    19,916.16/29,869.68 = 5,876.40/x
  3. Step 3: Cross multiply
    19,916.16x = 29,869.68 × 5,876.40
  4. Step 4: Simplify right side
    19,916.16x = 175,526,187.55
  5. Step 5: Solve for x
    x = 175,526,187.55/19,916.16
  6. Step 6: Final answer
    x = 8,813.25

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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.