Home / 33,011.72-45,555.32-18,864.57

Finding the Fourth Proportional to 33,011.72, 45,555.32 and 18,864.57

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Solution

The fourth proportional to 33,011.72, 45,555.32 and 18,864.57 is: 26,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,011.72 : 45,555.32 = 18,864.57 : x
  2. Step 2: Convert to fraction form
    33,011.72/45,555.32 = 18,864.57/x
  3. Step 3: Cross multiply
    33,011.72x = 45,555.32 × 18,864.57
  4. Step 4: Simplify right side
    33,011.72x = 859,381,523.01
  5. Step 5: Solve for x
    x = 859,381,523.01/33,011.72
  6. Step 6: Final answer
    x = 26,032.62

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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.