Home / 31,329.93-47,007.21-13,787.46

Finding the Fourth Proportional to 31,329.93, 47,007.21 and 13,787.46

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Solution

The fourth proportional to 31,329.93, 47,007.21 and 13,787.46 is: 20,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.93 : 47,007.21 = 13,787.46 : x
  2. Step 2: Convert to fraction form
    31,329.93/47,007.21 = 13,787.46/x
  3. Step 3: Cross multiply
    31,329.93x = 47,007.21 × 13,787.46
  4. Step 4: Simplify right side
    31,329.93x = 648,109,958.65
  5. Step 5: Solve for x
    x = 648,109,958.65/31,329.93
  6. Step 6: Final answer
    x = 20,686.61

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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.