Home / 20,286.59-27,962.03-13,569.80

Finding the Fourth Proportional to 20,286.59, 27,962.03 and 13,569.80

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Solution

The fourth proportional to 20,286.59, 27,962.03 and 13,569.80 is: 18,703.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.59 : 27,962.03 = 13,569.80 : x
  2. Step 2: Convert to fraction form
    20,286.59/27,962.03 = 13,569.80/x
  3. Step 3: Cross multiply
    20,286.59x = 27,962.03 × 13,569.80
  4. Step 4: Simplify right side
    20,286.59x = 379,439,048.81
  5. Step 5: Solve for x
    x = 379,439,048.81/20,286.59
  6. Step 6: Final answer
    x = 18,703.94

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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.