Home / 20,736.07-28,593.61-13,650.19

Finding the Fourth Proportional to 20,736.07, 28,593.61 and 13,650.19

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Solution

The fourth proportional to 20,736.07, 28,593.61 and 13,650.19 is: 18,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.07 : 28,593.61 = 13,650.19 : x
  2. Step 2: Convert to fraction form
    20,736.07/28,593.61 = 13,650.19/x
  3. Step 3: Cross multiply
    20,736.07x = 28,593.61 × 13,650.19
  4. Step 4: Simplify right side
    20,736.07x = 390,308,209.29
  5. Step 5: Solve for x
    x = 390,308,209.29/20,736.07
  6. Step 6: Final answer
    x = 18,822.67

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Double scale
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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.