Home / 33,315.28-49,956.04-11,120.72

Finding the Fourth Proportional to 33,315.28, 49,956.04 and 11,120.72

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Solution

The fourth proportional to 33,315.28, 49,956.04 and 11,120.72 is: 16,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,315.28 : 49,956.04 = 11,120.72 : x
  2. Step 2: Convert to fraction form
    33,315.28/49,956.04 = 11,120.72/x
  3. Step 3: Cross multiply
    33,315.28x = 49,956.04 × 11,120.72
  4. Step 4: Simplify right side
    33,315.28x = 555,547,133.15
  5. Step 5: Solve for x
    x = 555,547,133.15/33,315.28
  6. Step 6: Final answer
    x = 16,675.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.