Home / 22,086.72-30,477.60-15,019.20

Finding the Fourth Proportional to 22,086.72, 30,477.60 and 15,019.20

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Solution

The fourth proportional to 22,086.72, 30,477.60 and 15,019.20 is: 20,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,086.72 : 30,477.60 = 15,019.20 : x
  2. Step 2: Convert to fraction form
    22,086.72/30,477.60 = 15,019.20/x
  3. Step 3: Cross multiply
    22,086.72x = 30,477.60 × 15,019.20
  4. Step 4: Simplify right side
    22,086.72x = 457,749,169.92
  5. Step 5: Solve for x
    x = 457,749,169.92/22,086.72
  6. Step 6: Final answer
    x = 20,725.09

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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.