Home / 31,877.00-43,965.54-20,548.34

Finding the Fourth Proportional to 31,877.00, 43,965.54 and 20,548.34

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Solution

The fourth proportional to 31,877.00, 43,965.54 and 20,548.34 is: 28,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.00 : 43,965.54 = 20,548.34 : x
  2. Step 2: Convert to fraction form
    31,877.00/43,965.54 = 20,548.34/x
  3. Step 3: Cross multiply
    31,877.00x = 43,965.54 × 20,548.34
  4. Step 4: Simplify right side
    31,877.00x = 903,418,644.38
  5. Step 5: Solve for x
    x = 903,418,644.38/31,877.00
  6. Step 6: Final answer
    x = 28,340.77

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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.