Home / 20,744.45-28,627.65-11,313.01

Finding the Fourth Proportional to 20,744.45, 28,627.65 and 11,313.01

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Solution

The fourth proportional to 20,744.45, 28,627.65 and 11,313.01 is: 15,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.45 : 28,627.65 = 11,313.01 : x
  2. Step 2: Convert to fraction form
    20,744.45/28,627.65 = 11,313.01/x
  3. Step 3: Cross multiply
    20,744.45x = 28,627.65 × 11,313.01
  4. Step 4: Simplify right side
    20,744.45x = 323,864,819.16
  5. Step 5: Solve for x
    x = 323,864,819.16/20,744.45
  6. Step 6: Final answer
    x = 15,612.12

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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.