Home / 33,077.36-45,635.28-21,147.68

Finding the Fourth Proportional to 33,077.36, 45,635.28 and 21,147.68

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Solution

The fourth proportional to 33,077.36, 45,635.28 and 21,147.68 is: 29,176.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,077.36 : 45,635.28 = 21,147.68 : x
  2. Step 2: Convert to fraction form
    33,077.36/45,635.28 = 21,147.68/x
  3. Step 3: Cross multiply
    33,077.36x = 45,635.28 × 21,147.68
  4. Step 4: Simplify right side
    33,077.36x = 965,080,298.15
  5. Step 5: Solve for x
    x = 965,080,298.15/33,077.36
  6. Step 6: Final answer
    x = 29,176.46

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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.