Home / 31,989.29-47,982.20-9,802.73

Finding the Fourth Proportional to 31,989.29, 47,982.20 and 9,802.73

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Solution

The fourth proportional to 31,989.29, 47,982.20 and 9,802.73 is: 14,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.29 : 47,982.20 = 9,802.73 : x
  2. Step 2: Convert to fraction form
    31,989.29/47,982.20 = 9,802.73/x
  3. Step 3: Cross multiply
    31,989.29x = 47,982.20 × 9,802.73
  4. Step 4: Simplify right side
    31,989.29x = 470,356,551.41
  5. Step 5: Solve for x
    x = 470,356,551.41/31,989.29
  6. Step 6: Final answer
    x = 14,703.56

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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.