Home / 33,320.79-45,981.42-18,213.33

Finding the Fourth Proportional to 33,320.79, 45,981.42 and 18,213.33

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Solution

The fourth proportional to 33,320.79, 45,981.42 and 18,213.33 is: 25,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.79 : 45,981.42 = 18,213.33 : x
  2. Step 2: Convert to fraction form
    33,320.79/45,981.42 = 18,213.33/x
  3. Step 3: Cross multiply
    33,320.79x = 45,981.42 × 18,213.33
  4. Step 4: Simplify right side
    33,320.79x = 837,474,776.33
  5. Step 5: Solve for x
    x = 837,474,776.33/33,320.79
  6. Step 6: Final answer
    x = 25,133.70

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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.