Home / 20,247.31-30,371.23-7,100.06

Finding the Fourth Proportional to 20,247.31, 30,371.23 and 7,100.06

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Solution

The fourth proportional to 20,247.31, 30,371.23 and 7,100.06 is: 10,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.31 : 30,371.23 = 7,100.06 : x
  2. Step 2: Convert to fraction form
    20,247.31/30,371.23 = 7,100.06/x
  3. Step 3: Cross multiply
    20,247.31x = 30,371.23 × 7,100.06
  4. Step 4: Simplify right side
    20,247.31x = 215,637,555.27
  5. Step 5: Solve for x
    x = 215,637,555.27/20,247.31
  6. Step 6: Final answer
    x = 10,650.19

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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.