Home / 18,937.92-28,405.44-5,790.36

Finding the Fourth Proportional to 18,937.92, 28,405.44 and 5,790.36

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Solution

The fourth proportional to 18,937.92, 28,405.44 and 5,790.36 is: 8,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.92 : 28,405.44 = 5,790.36 : x
  2. Step 2: Convert to fraction form
    18,937.92/28,405.44 = 5,790.36/x
  3. Step 3: Cross multiply
    18,937.92x = 28,405.44 × 5,790.36
  4. Step 4: Simplify right side
    18,937.92x = 164,477,723.56
  5. Step 5: Solve for x
    x = 164,477,723.56/18,937.92
  6. Step 6: Final answer
    x = 8,685.10

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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.