Home / 30,991.23-42,767.87-16,844.18

Finding the Fourth Proportional to 30,991.23, 42,767.87 and 16,844.18

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Solution

The fourth proportional to 30,991.23, 42,767.87 and 16,844.18 is: 23,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.23 : 42,767.87 = 16,844.18 : x
  2. Step 2: Convert to fraction form
    30,991.23/42,767.87 = 16,844.18/x
  3. Step 3: Cross multiply
    30,991.23x = 42,767.87 × 16,844.18
  4. Step 4: Simplify right side
    30,991.23x = 720,389,402.44
  5. Step 5: Solve for x
    x = 720,389,402.44/30,991.23
  6. Step 6: Final answer
    x = 23,244.94

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1.5x scale

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.