Home / 30,991.17-42,767.67-16,844.02

Finding the Fourth Proportional to 30,991.17, 42,767.67 and 16,844.02

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Solution

The fourth proportional to 30,991.17, 42,767.67 and 16,844.02 is: 23,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.17 : 42,767.67 = 16,844.02 : x
  2. Step 2: Convert to fraction form
    30,991.17/42,767.67 = 16,844.02/x
  3. Step 3: Cross multiply
    30,991.17x = 42,767.67 × 16,844.02
  4. Step 4: Simplify right side
    30,991.17x = 720,379,381.91
  5. Step 5: Solve for x
    x = 720,379,381.91/30,991.17
  6. Step 6: Final answer
    x = 23,244.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.