Home / 33,120.72-49,681.08-19,260

Finding the Fourth Proportional to 33,120.72, 49,681.08 and 19,260

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Solution

The fourth proportional to 33,120.72, 49,681.08 and 19,260 is: 28,890

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.72 : 49,681.08 = 19,260 : x
  2. Step 2: Convert to fraction form
    33,120.72/49,681.08 = 19,260/x
  3. Step 3: Cross multiply
    33,120.72x = 49,681.08 × 19,260
  4. Step 4: Simplify right side
    33,120.72x = 956,857,600.80
  5. Step 5: Solve for x
    x = 956,857,600.80/33,120.72
  6. Step 6: Final answer
    x = 28,890

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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.