Home / 19,931.00-29,914.92-10,077.21

Finding the Fourth Proportional to 19,931.00, 29,914.92 and 10,077.21

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Solution

The fourth proportional to 19,931.00, 29,914.92 and 10,077.21 is: 15,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.00 : 29,914.92 = 10,077.21 : x
  2. Step 2: Convert to fraction form
    19,931.00/29,914.92 = 10,077.21/x
  3. Step 3: Cross multiply
    19,931.00x = 29,914.92 × 10,077.21
  4. Step 4: Simplify right side
    19,931.00x = 301,458,930.97
  5. Step 5: Solve for x
    x = 301,458,930.97/19,931.00
  6. Step 6: Final answer
    x = 15,125.13

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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.