Home / 38,681.78-58,061.79-19,975.18

Finding the Fourth Proportional to 38,681.78, 58,061.79 and 19,975.18

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Solution

The fourth proportional to 38,681.78, 58,061.79 and 19,975.18 is: 29,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,681.78 : 58,061.79 = 19,975.18 : x
  2. Step 2: Convert to fraction form
    38,681.78/58,061.79 = 19,975.18/x
  3. Step 3: Cross multiply
    38,681.78x = 58,061.79 × 19,975.18
  4. Step 4: Simplify right side
    38,681.78x = 1,159,794,706.37
  5. Step 5: Solve for x
    x = 1,159,794,706.37/38,681.78
  6. Step 6: Final answer
    x = 29,982.97

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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.