Home / 20,646.70-28,504.27-13,593.63

Finding the Fourth Proportional to 20,646.70, 28,504.27 and 13,593.63

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Solution

The fourth proportional to 20,646.70, 28,504.27 and 13,593.63 is: 18,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.70 : 28,504.27 = 13,593.63 : x
  2. Step 2: Convert to fraction form
    20,646.70/28,504.27 = 13,593.63/x
  3. Step 3: Cross multiply
    20,646.70x = 28,504.27 × 13,593.63
  4. Step 4: Simplify right side
    20,646.70x = 387,476,499.80
  5. Step 5: Solve for x
    x = 387,476,499.80/20,646.70
  6. Step 6: Final answer
    x = 18,766.99

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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.