Home / 19,988.38-29,976.90-5,947.84

Finding the Fourth Proportional to 19,988.38, 29,976.90 and 5,947.84

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Solution

The fourth proportional to 19,988.38, 29,976.90 and 5,947.84 is: 8,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.38 : 29,976.90 = 5,947.84 : x
  2. Step 2: Convert to fraction form
    19,988.38/29,976.90 = 5,947.84/x
  3. Step 3: Cross multiply
    19,988.38x = 29,976.90 × 5,947.84
  4. Step 4: Simplify right side
    19,988.38x = 178,297,804.90
  5. Step 5: Solve for x
    x = 178,297,804.90/19,988.38
  6. Step 6: Final answer
    x = 8,920.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.