Home / 33,123.44-45,712.68-18,979.76

Finding the Fourth Proportional to 33,123.44, 45,712.68 and 18,979.76

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Solution

The fourth proportional to 33,123.44, 45,712.68 and 18,979.76 is: 26,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,123.44 : 45,712.68 = 18,979.76 : x
  2. Step 2: Convert to fraction form
    33,123.44/45,712.68 = 18,979.76/x
  3. Step 3: Cross multiply
    33,123.44x = 45,712.68 × 18,979.76
  4. Step 4: Simplify right side
    33,123.44x = 867,615,695.36
  5. Step 5: Solve for x
    x = 867,615,695.36/33,123.44
  6. Step 6: Final answer
    x = 26,193.41

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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.