Home / 19,916.30-29,874.47-5,125.25

Finding the Fourth Proportional to 19,916.30, 29,874.47 and 5,125.25

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Solution

The fourth proportional to 19,916.30, 29,874.47 and 5,125.25 is: 7,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.30 : 29,874.47 = 5,125.25 : x
  2. Step 2: Convert to fraction form
    19,916.30/29,874.47 = 5,125.25/x
  3. Step 3: Cross multiply
    19,916.30x = 29,874.47 × 5,125.25
  4. Step 4: Simplify right side
    19,916.30x = 153,113,952.37
  5. Step 5: Solve for x
    x = 153,113,952.37/19,916.30
  6. Step 6: Final answer
    x = 7,687.87

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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.