Home / 21,724.60-32,586.90-20,266.60

Finding the Fourth Proportional to 21,724.60, 32,586.90 and 20,266.60

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Solution

The fourth proportional to 21,724.60, 32,586.90 and 20,266.60 is: 30,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.60 : 32,586.90 = 20,266.60 : x
  2. Step 2: Convert to fraction form
    21,724.60/32,586.90 = 20,266.60/x
  3. Step 3: Cross multiply
    21,724.60x = 32,586.90 × 20,266.60
  4. Step 4: Simplify right side
    21,724.60x = 660,425,667.54
  5. Step 5: Solve for x
    x = 660,425,667.54/21,724.60
  6. Step 6: Final answer
    x = 30,399.90

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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.