Home / 22,155.96-30,561.48-13,197.36

Finding the Fourth Proportional to 22,155.96, 30,561.48 and 13,197.36

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Solution

The fourth proportional to 22,155.96, 30,561.48 and 13,197.36 is: 18,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,155.96 : 30,561.48 = 13,197.36 : x
  2. Step 2: Convert to fraction form
    22,155.96/30,561.48 = 13,197.36/x
  3. Step 3: Cross multiply
    22,155.96x = 30,561.48 × 13,197.36
  4. Step 4: Simplify right side
    22,155.96x = 403,330,853.69
  5. Step 5: Solve for x
    x = 403,330,853.69/22,155.96
  6. Step 6: Final answer
    x = 18,204.17

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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.