Home / 31,769.64-43,841.42-19,666.90

Finding the Fourth Proportional to 31,769.64, 43,841.42 and 19,666.90

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Solution

The fourth proportional to 31,769.64, 43,841.42 and 19,666.90 is: 27,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.64 : 43,841.42 = 19,666.90 : x
  2. Step 2: Convert to fraction form
    31,769.64/43,841.42 = 19,666.90/x
  3. Step 3: Cross multiply
    31,769.64x = 43,841.42 × 19,666.90
  4. Step 4: Simplify right side
    31,769.64x = 862,224,823.00
  5. Step 5: Solve for x
    x = 862,224,823.00/31,769.64
  6. Step 6: Final answer
    x = 27,139.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.