Home / 38,275-52,824.45-21,508

Finding the Fourth Proportional to 38,275, 52,824.45 and 21,508

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Solution

The fourth proportional to 38,275, 52,824.45 and 21,508 is: 29,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,275 : 52,824.45 = 21,508 : x
  2. Step 2: Convert to fraction form
    38,275/52,824.45 = 21,508/x
  3. Step 3: Cross multiply
    38,275x = 52,824.45 × 21,508
  4. Step 4: Simplify right side
    38,275x = 1,136,148,270.60
  5. Step 5: Solve for x
    x = 1,136,148,270.60/38,275
  6. Step 6: Final answer
    x = 29,683.82

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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.