Home / 28,960.80-39,947.66-22,236.16

Finding the Fourth Proportional to 28,960.80, 39,947.66 and 22,236.16

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Solution

The fourth proportional to 28,960.80, 39,947.66 and 22,236.16 is: 30,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.80 : 39,947.66 = 22,236.16 : x
  2. Step 2: Convert to fraction form
    28,960.80/39,947.66 = 22,236.16/x
  3. Step 3: Cross multiply
    28,960.80x = 39,947.66 × 22,236.16
  4. Step 4: Simplify right side
    28,960.80x = 888,282,559.39
  5. Step 5: Solve for x
    x = 888,282,559.39/28,960.80
  6. Step 6: Final answer
    x = 30,671.89

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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.