Home / 31,601.80-47,411.47-13,829.27

Finding the Fourth Proportional to 31,601.80, 47,411.47 and 13,829.27

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Solution

The fourth proportional to 31,601.80, 47,411.47 and 13,829.27 is: 20,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,601.80 : 47,411.47 = 13,829.27 : x
  2. Step 2: Convert to fraction form
    31,601.80/47,411.47 = 13,829.27/x
  3. Step 3: Cross multiply
    31,601.80x = 47,411.47 × 13,829.27
  4. Step 4: Simplify right side
    31,601.80x = 655,666,019.73
  5. Step 5: Solve for x
    x = 655,666,019.73/31,601.80
  6. Step 6: Final answer
    x = 20,747.75

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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.