Home / 30,947.54-42,706.76-16,800.08

Finding the Fourth Proportional to 30,947.54, 42,706.76 and 16,800.08

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Solution

The fourth proportional to 30,947.54, 42,706.76 and 16,800.08 is: 23,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.54 : 42,706.76 = 16,800.08 : x
  2. Step 2: Convert to fraction form
    30,947.54/42,706.76 = 16,800.08/x
  3. Step 3: Cross multiply
    30,947.54x = 42,706.76 × 16,800.08
  4. Step 4: Simplify right side
    30,947.54x = 717,476,687.01
  5. Step 5: Solve for x
    x = 717,476,687.01/30,947.54
  6. Step 6: Final answer
    x = 23,183.65

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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.