Home / 31,838.30-47,684.72-15,210.11

Finding the Fourth Proportional to 31,838.30, 47,684.72 and 15,210.11

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Solution

The fourth proportional to 31,838.30, 47,684.72 and 15,210.11 is: 22,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.30 : 47,684.72 = 15,210.11 : x
  2. Step 2: Convert to fraction form
    31,838.30/47,684.72 = 15,210.11/x
  3. Step 3: Cross multiply
    31,838.30x = 47,684.72 × 15,210.11
  4. Step 4: Simplify right side
    31,838.30x = 725,289,993.76
  5. Step 5: Solve for x
    x = 725,289,993.76/31,838.30
  6. Step 6: Final answer
    x = 22,780.43

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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.