Home / 22,145.80-30,561.30-13,197.80

Finding the Fourth Proportional to 22,145.80, 30,561.30 and 13,197.80

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Solution

The fourth proportional to 22,145.80, 30,561.30 and 13,197.80 is: 18,213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.80 : 30,561.30 = 13,197.80 : x
  2. Step 2: Convert to fraction form
    22,145.80/30,561.30 = 13,197.80/x
  3. Step 3: Cross multiply
    22,145.80x = 30,561.30 × 13,197.80
  4. Step 4: Simplify right side
    22,145.80x = 403,341,925.14
  5. Step 5: Solve for x
    x = 403,341,925.14/22,145.80
  6. Step 6: Final answer
    x = 18,213.02

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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.