Home / 31,798.98-43,882.76-19,869.24

Finding the Fourth Proportional to 31,798.98, 43,882.76 and 19,869.24

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Solution

The fourth proportional to 31,798.98, 43,882.76 and 19,869.24 is: 27,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.98 : 43,882.76 = 19,869.24 : x
  2. Step 2: Convert to fraction form
    31,798.98/43,882.76 = 19,869.24/x
  3. Step 3: Cross multiply
    31,798.98x = 43,882.76 × 19,869.24
  4. Step 4: Simplify right side
    31,798.98x = 871,917,090.30
  5. Step 5: Solve for x
    x = 871,917,090.30/31,798.98
  6. Step 6: Final answer
    x = 27,419.66

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1.5x scale

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.