Home / 22,019.60-30,392.49-13,523.78

Finding the Fourth Proportional to 22,019.60, 30,392.49 and 13,523.78

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Solution

The fourth proportional to 22,019.60, 30,392.49 and 13,523.78 is: 18,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019.60 : 30,392.49 = 13,523.78 : x
  2. Step 2: Convert to fraction form
    22,019.60/30,392.49 = 13,523.78/x
  3. Step 3: Cross multiply
    22,019.60x = 30,392.49 × 13,523.78
  4. Step 4: Simplify right side
    22,019.60x = 411,021,196.45
  5. Step 5: Solve for x
    x = 411,021,196.45/22,019.60
  6. Step 6: Final answer
    x = 18,666.16

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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.