Home / 30,991.57-42,766.55-16,844.29

Finding the Fourth Proportional to 30,991.57, 42,766.55 and 16,844.29

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Solution

The fourth proportional to 30,991.57, 42,766.55 and 16,844.29 is: 23,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.57 : 42,766.55 = 16,844.29 : x
  2. Step 2: Convert to fraction form
    30,991.57/42,766.55 = 16,844.29/x
  3. Step 3: Cross multiply
    30,991.57x = 42,766.55 × 16,844.29
  4. Step 4: Simplify right side
    30,991.57x = 720,371,956.67
  5. Step 5: Solve for x
    x = 720,371,956.67/30,991.57
  6. Step 6: Final answer
    x = 23,244.13

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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.