Home / 22,155.36-30,570.90-13,202.64

Finding the Fourth Proportional to 22,155.36, 30,570.90 and 13,202.64

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Solution

The fourth proportional to 22,155.36, 30,570.90 and 13,202.64 is: 18,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,155.36 : 30,570.90 = 13,202.64 : x
  2. Step 2: Convert to fraction form
    22,155.36/30,570.90 = 13,202.64/x
  3. Step 3: Cross multiply
    22,155.36x = 30,570.90 × 13,202.64
  4. Step 4: Simplify right side
    22,155.36x = 403,616,587.18
  5. Step 5: Solve for x
    x = 403,616,587.18/22,155.36
  6. Step 6: Final answer
    x = 18,217.56

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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.