Home / 18,900.41-28,342.35-5,749.70

Finding the Fourth Proportional to 18,900.41, 28,342.35 and 5,749.70

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Solution

The fourth proportional to 18,900.41, 28,342.35 and 5,749.70 is: 8,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.41 : 28,342.35 = 5,749.70 : x
  2. Step 2: Convert to fraction form
    18,900.41/28,342.35 = 5,749.70/x
  3. Step 3: Cross multiply
    18,900.41x = 28,342.35 × 5,749.70
  4. Step 4: Simplify right side
    18,900.41x = 162,959,868.08
  5. Step 5: Solve for x
    x = 162,959,868.08/18,900.41
  6. Step 6: Final answer
    x = 8,622.03

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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.