Home / 18,937.82-28,406.70-5,790.19

Finding the Fourth Proportional to 18,937.82, 28,406.70 and 5,790.19

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Solution

The fourth proportional to 18,937.82, 28,406.70 and 5,790.19 is: 8,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.82 : 28,406.70 = 5,790.19 : x
  2. Step 2: Convert to fraction form
    18,937.82/28,406.70 = 5,790.19/x
  3. Step 3: Cross multiply
    18,937.82x = 28,406.70 × 5,790.19
  4. Step 4: Simplify right side
    18,937.82x = 164,480,190.27
  5. Step 5: Solve for x
    x = 164,480,190.27/18,937.82
  6. Step 6: Final answer
    x = 8,685.28

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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.