Home / 33,117.21-45,711.60-18,979.47

Finding the Fourth Proportional to 33,117.21, 45,711.60 and 18,979.47

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Solution

The fourth proportional to 33,117.21, 45,711.60 and 18,979.47 is: 26,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,117.21 : 45,711.60 = 18,979.47 : x
  2. Step 2: Convert to fraction form
    33,117.21/45,711.60 = 18,979.47/x
  3. Step 3: Cross multiply
    33,117.21x = 45,711.60 × 18,979.47
  4. Step 4: Simplify right side
    33,117.21x = 867,581,940.85
  5. Step 5: Solve for x
    x = 867,581,940.85/33,117.21
  6. Step 6: Final answer
    x = 26,197.31

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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.