Home / 30,243.60-41,727.42-20,675.48

Finding the Fourth Proportional to 30,243.60, 41,727.42 and 20,675.48

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Solution

The fourth proportional to 30,243.60, 41,727.42 and 20,675.48 is: 28,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.60 : 41,727.42 = 20,675.48 : x
  2. Step 2: Convert to fraction form
    30,243.60/41,727.42 = 20,675.48/x
  3. Step 3: Cross multiply
    30,243.60x = 41,727.42 × 20,675.48
  4. Step 4: Simplify right side
    30,243.60x = 862,734,229.02
  5. Step 5: Solve for x
    x = 862,734,229.02/30,243.60
  6. Step 6: Final answer
    x = 28,526.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.