Home / 20,426.72-30,632.72-7,276.46

Finding the Fourth Proportional to 20,426.72, 30,632.72 and 7,276.46

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Solution

The fourth proportional to 20,426.72, 30,632.72 and 7,276.46 is: 10,912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.72 : 30,632.72 = 7,276.46 : x
  2. Step 2: Convert to fraction form
    20,426.72/30,632.72 = 7,276.46/x
  3. Step 3: Cross multiply
    20,426.72x = 30,632.72 × 7,276.46
  4. Step 4: Simplify right side
    20,426.72x = 222,897,572.23
  5. Step 5: Solve for x
    x = 222,897,572.23/20,426.72
  6. Step 6: Final answer
    x = 10,912.06

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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.