Home / 31,981.14-47,971.71-16,388.82

Finding the Fourth Proportional to 31,981.14, 47,971.71 and 16,388.82

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Solution

The fourth proportional to 31,981.14, 47,971.71 and 16,388.82 is: 24,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.14 : 47,971.71 = 16,388.82 : x
  2. Step 2: Convert to fraction form
    31,981.14/47,971.71 = 16,388.82/x
  3. Step 3: Cross multiply
    31,981.14x = 47,971.71 × 16,388.82
  4. Step 4: Simplify right side
    31,981.14x = 786,199,720.28
  5. Step 5: Solve for x
    x = 786,199,720.28/31,981.14
  6. Step 6: Final answer
    x = 24,583.23

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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.