Home / 20,544.56-28,351.72-11,113.28

Finding the Fourth Proportional to 20,544.56, 28,351.72 and 11,113.28

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Solution

The fourth proportional to 20,544.56, 28,351.72 and 11,113.28 is: 15,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.56 : 28,351.72 = 11,113.28 : x
  2. Step 2: Convert to fraction form
    20,544.56/28,351.72 = 11,113.28/x
  3. Step 3: Cross multiply
    20,544.56x = 28,351.72 × 11,113.28
  4. Step 4: Simplify right side
    20,544.56x = 315,080,602.84
  5. Step 5: Solve for x
    x = 315,080,602.84/20,544.56
  6. Step 6: Final answer
    x = 15,336.45

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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.