Home / 19,564.30-29,346.15-7,877.22

Finding the Fourth Proportional to 19,564.30, 29,346.15 and 7,877.22

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Solution

The fourth proportional to 19,564.30, 29,346.15 and 7,877.22 is: 11,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,564.30 : 29,346.15 = 7,877.22 : x
  2. Step 2: Convert to fraction form
    19,564.30/29,346.15 = 7,877.22/x
  3. Step 3: Cross multiply
    19,564.30x = 29,346.15 × 7,877.22
  4. Step 4: Simplify right side
    19,564.30x = 231,166,079.70
  5. Step 5: Solve for x
    x = 231,166,079.70/19,564.30
  6. Step 6: Final answer
    x = 11,815.71

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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.