Home / 20,593.34-28,418.50-11,640.53

Finding the Fourth Proportional to 20,593.34, 28,418.50 and 11,640.53

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Solution

The fourth proportional to 20,593.34, 28,418.50 and 11,640.53 is: 16,063.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.34 : 28,418.50 = 11,640.53 : x
  2. Step 2: Convert to fraction form
    20,593.34/28,418.50 = 11,640.53/x
  3. Step 3: Cross multiply
    20,593.34x = 28,418.50 × 11,640.53
  4. Step 4: Simplify right side
    20,593.34x = 330,806,430.91
  5. Step 5: Solve for x
    x = 330,806,430.91/20,593.34
  6. Step 6: Final answer
    x = 16,063.76

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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.