Home / 33,320.54-45,981.09-18,213.08

Finding the Fourth Proportional to 33,320.54, 45,981.09 and 18,213.08

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Solution

The fourth proportional to 33,320.54, 45,981.09 and 18,213.08 is: 25,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.54 : 45,981.09 = 18,213.08 : x
  2. Step 2: Convert to fraction form
    33,320.54/45,981.09 = 18,213.08/x
  3. Step 3: Cross multiply
    33,320.54x = 45,981.09 × 18,213.08
  4. Step 4: Simplify right side
    33,320.54x = 837,457,040.75
  5. Step 5: Solve for x
    x = 837,457,040.75/33,320.54
  6. Step 6: Final answer
    x = 25,133.36

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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.