Home / 33,320.89-45,982.51-18,783.75

Finding the Fourth Proportional to 33,320.89, 45,982.51 and 18,783.75

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Solution

The fourth proportional to 33,320.89, 45,982.51 and 18,783.75 is: 25,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.89 : 45,982.51 = 18,783.75 : x
  2. Step 2: Convert to fraction form
    33,320.89/45,982.51 = 18,783.75/x
  3. Step 3: Cross multiply
    33,320.89x = 45,982.51 × 18,783.75
  4. Step 4: Simplify right side
    33,320.89x = 863,723,972.21
  5. Step 5: Solve for x
    x = 863,723,972.21/33,320.89
  6. Step 6: Final answer
    x = 25,921.40

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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.