Home / 31,316.84-43,217.38-16,976.91

Finding the Fourth Proportional to 31,316.84, 43,217.38 and 16,976.91

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Solution

The fourth proportional to 31,316.84, 43,217.38 and 16,976.91 is: 23,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.84 : 43,217.38 = 16,976.91 : x
  2. Step 2: Convert to fraction form
    31,316.84/43,217.38 = 16,976.91/x
  3. Step 3: Cross multiply
    31,316.84x = 43,217.38 × 16,976.91
  4. Step 4: Simplify right side
    31,316.84x = 733,697,570.70
  5. Step 5: Solve for x
    x = 733,697,570.70/31,316.84
  6. Step 6: Final answer
    x = 23,428.21

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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.