Home / 20,247.81-30,371.98-7,100.56

Finding the Fourth Proportional to 20,247.81, 30,371.98 and 7,100.56

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Solution

The fourth proportional to 20,247.81, 30,371.98 and 7,100.56 is: 10,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.81 : 30,371.98 = 7,100.56 : x
  2. Step 2: Convert to fraction form
    20,247.81/30,371.98 = 7,100.56/x
  3. Step 3: Cross multiply
    20,247.81x = 30,371.98 × 7,100.56
  4. Step 4: Simplify right side
    20,247.81x = 215,658,066.31
  5. Step 5: Solve for x
    x = 215,658,066.31/20,247.81
  6. Step 6: Final answer
    x = 10,650.93

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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.