Home / 31,989.41-47,982.38-9,802.85

Finding the Fourth Proportional to 31,989.41, 47,982.38 and 9,802.85

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Solution

The fourth proportional to 31,989.41, 47,982.38 and 9,802.85 is: 14,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.41 : 47,982.38 = 9,802.85 : x
  2. Step 2: Convert to fraction form
    31,989.41/47,982.38 = 9,802.85/x
  3. Step 3: Cross multiply
    31,989.41x = 47,982.38 × 9,802.85
  4. Step 4: Simplify right side
    31,989.41x = 470,364,073.78
  5. Step 5: Solve for x
    x = 470,364,073.78/31,989.41
  6. Step 6: Final answer
    x = 14,703.74

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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.