Home / 20,529.63-30,738.83-10,648.22

Finding the Fourth Proportional to 20,529.63, 30,738.83 and 10,648.22

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Solution

The fourth proportional to 20,529.63, 30,738.83 and 10,648.22 is: 15,943.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.63 : 30,738.83 = 10,648.22 : x
  2. Step 2: Convert to fraction form
    20,529.63/30,738.83 = 10,648.22/x
  3. Step 3: Cross multiply
    20,529.63x = 30,738.83 × 10,648.22
  4. Step 4: Simplify right side
    20,529.63x = 327,313,617.45
  5. Step 5: Solve for x
    x = 327,313,617.45/20,529.63
  6. Step 6: Final answer
    x = 15,943.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.