Home / 30,667.48-45,954.28-20,635.07

Finding the Fourth Proportional to 30,667.48, 45,954.28 and 20,635.07

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Solution

The fourth proportional to 30,667.48, 45,954.28 and 20,635.07 is: 30,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,667.48 : 45,954.28 = 20,635.07 : x
  2. Step 2: Convert to fraction form
    30,667.48/45,954.28 = 20,635.07/x
  3. Step 3: Cross multiply
    30,667.48x = 45,954.28 × 20,635.07
  4. Step 4: Simplify right side
    30,667.48x = 948,269,847.90
  5. Step 5: Solve for x
    x = 948,269,847.90/30,667.48
  6. Step 6: Final answer
    x = 30,921.02

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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.