Home / 31,685.36-47,537.01-15,871.29

Finding the Fourth Proportional to 31,685.36, 47,537.01 and 15,871.29

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Solution

The fourth proportional to 31,685.36, 47,537.01 and 15,871.29 is: 23,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.36 : 47,537.01 = 15,871.29 : x
  2. Step 2: Convert to fraction form
    31,685.36/47,537.01 = 15,871.29/x
  3. Step 3: Cross multiply
    31,685.36x = 47,537.01 × 15,871.29
  4. Step 4: Simplify right side
    31,685.36x = 754,473,493.18
  5. Step 5: Solve for x
    x = 754,473,493.18/31,685.36
  6. Step 6: Final answer
    x = 23,811.43

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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.