Home / 20,246.81-30,370.48-7,099.56

Finding the Fourth Proportional to 20,246.81, 30,370.48 and 7,099.56

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Solution

The fourth proportional to 20,246.81, 30,370.48 and 7,099.56 is: 10,649.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.81 : 30,370.48 = 7,099.56 : x
  2. Step 2: Convert to fraction form
    20,246.81/30,370.48 = 7,099.56/x
  3. Step 3: Cross multiply
    20,246.81x = 30,370.48 × 7,099.56
  4. Step 4: Simplify right side
    20,246.81x = 215,617,027.24
  5. Step 5: Solve for x
    x = 215,617,027.24/20,246.81
  6. Step 6: Final answer
    x = 10,649.43

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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.