Home / 33,154.70-45,743.19-20,394.50

Finding the Fourth Proportional to 33,154.70, 45,743.19 and 20,394.50

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Solution

The fourth proportional to 33,154.70, 45,743.19 and 20,394.50 is: 28,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,154.70 : 45,743.19 = 20,394.50 : x
  2. Step 2: Convert to fraction form
    33,154.70/45,743.19 = 20,394.50/x
  3. Step 3: Cross multiply
    33,154.70x = 45,743.19 × 20,394.50
  4. Step 4: Simplify right side
    33,154.70x = 932,909,488.46
  5. Step 5: Solve for x
    x = 932,909,488.46/33,154.70
  6. Step 6: Final answer
    x = 28,138.08

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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.