Home / 33,061.65-45,624.42-18,720.39

Finding the Fourth Proportional to 33,061.65, 45,624.42 and 18,720.39

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Solution

The fourth proportional to 33,061.65, 45,624.42 and 18,720.39 is: 25,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,061.65 : 45,624.42 = 18,720.39 : x
  2. Step 2: Convert to fraction form
    33,061.65/45,624.42 = 18,720.39/x
  3. Step 3: Cross multiply
    33,061.65x = 45,624.42 × 18,720.39
  4. Step 4: Simplify right side
    33,061.65x = 854,106,935.92
  5. Step 5: Solve for x
    x = 854,106,935.92/33,061.65
  6. Step 6: Final answer
    x = 25,833.77

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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.