Home / 22,242.96-30,720.48-15,157.08

Finding the Fourth Proportional to 22,242.96, 30,720.48 and 15,157.08

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Solution

The fourth proportional to 22,242.96, 30,720.48 and 15,157.08 is: 20,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,242.96 : 30,720.48 = 15,157.08 : x
  2. Step 2: Convert to fraction form
    22,242.96/30,720.48 = 15,157.08/x
  3. Step 3: Cross multiply
    22,242.96x = 30,720.48 × 15,157.08
  4. Step 4: Simplify right side
    22,242.96x = 465,632,773.00
  5. Step 5: Solve for x
    x = 465,632,773.00/22,242.96
  6. Step 6: Final answer
    x = 20,933.94

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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.