Home / 20,638.02-30,957.03-7,490.37

Finding the Fourth Proportional to 20,638.02, 30,957.03 and 7,490.37

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Solution

The fourth proportional to 20,638.02, 30,957.03 and 7,490.37 is: 11,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,638.02 : 30,957.03 = 7,490.37 : x
  2. Step 2: Convert to fraction form
    20,638.02/30,957.03 = 7,490.37/x
  3. Step 3: Cross multiply
    20,638.02x = 30,957.03 × 7,490.37
  4. Step 4: Simplify right side
    20,638.02x = 231,879,608.80
  5. Step 5: Solve for x
    x = 231,879,608.80/20,638.02
  6. Step 6: Final answer
    x = 11,235.56

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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.