Home / 33,117.81-45,701.56-18,778.95

Finding the Fourth Proportional to 33,117.81, 45,701.56 and 18,778.95

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Solution

The fourth proportional to 33,117.81, 45,701.56 and 18,778.95 is: 25,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,117.81 : 45,701.56 = 18,778.95 : x
  2. Step 2: Convert to fraction form
    33,117.81/45,701.56 = 18,778.95/x
  3. Step 3: Cross multiply
    33,117.81x = 45,701.56 × 18,778.95
  4. Step 4: Simplify right side
    33,117.81x = 858,227,505.02
  5. Step 5: Solve for x
    x = 858,227,505.02/33,117.81
  6. Step 6: Final answer
    x = 25,914.38

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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.