Home / 33,113.53-45,681.33-18,958.78

Finding the Fourth Proportional to 33,113.53, 45,681.33 and 18,958.78

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Solution

The fourth proportional to 33,113.53, 45,681.33 and 18,958.78 is: 26,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,113.53 : 45,681.33 = 18,958.78 : x
  2. Step 2: Convert to fraction form
    33,113.53/45,681.33 = 18,958.78/x
  3. Step 3: Cross multiply
    33,113.53x = 45,681.33 × 18,958.78
  4. Step 4: Simplify right side
    33,113.53x = 866,062,285.58
  5. Step 5: Solve for x
    x = 866,062,285.58/33,113.53
  6. Step 6: Final answer
    x = 26,154.33

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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.