Home / 22,155.36-30,569.04-13,197.12

Finding the Fourth Proportional to 22,155.36, 30,569.04 and 13,197.12

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Solution

The fourth proportional to 22,155.36, 30,569.04 and 13,197.12 is: 18,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,155.36 : 30,569.04 = 13,197.12 : x
  2. Step 2: Convert to fraction form
    22,155.36/30,569.04 = 13,197.12/x
  3. Step 3: Cross multiply
    22,155.36x = 30,569.04 × 13,197.12
  4. Step 4: Simplify right side
    22,155.36x = 403,423,289.16
  5. Step 5: Solve for x
    x = 403,423,289.16/22,155.36
  6. Step 6: Final answer
    x = 18,208.83

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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.