Home / 22,155.60-30,573.63-13,202.89

Finding the Fourth Proportional to 22,155.60, 30,573.63 and 13,202.89

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Solution

The fourth proportional to 22,155.60, 30,573.63 and 13,202.89 is: 18,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,155.60 : 30,573.63 = 13,202.89 : x
  2. Step 2: Convert to fraction form
    22,155.60/30,573.63 = 13,202.89/x
  3. Step 3: Cross multiply
    22,155.60x = 30,573.63 × 13,202.89
  4. Step 4: Simplify right side
    22,155.60x = 403,660,273.79
  5. Step 5: Solve for x
    x = 403,660,273.79/22,155.60
  6. Step 6: Final answer
    x = 18,219.34

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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.