Home / 38,672.64-53,371.51-21,676.61

Finding the Fourth Proportional to 38,672.64, 53,371.51 and 21,676.61

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Solution

The fourth proportional to 38,672.64, 53,371.51 and 21,676.61 is: 29,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.64 : 53,371.51 = 21,676.61 : x
  2. Step 2: Convert to fraction form
    38,672.64/53,371.51 = 21,676.61/x
  3. Step 3: Cross multiply
    38,672.64x = 53,371.51 × 21,676.61
  4. Step 4: Simplify right side
    38,672.64x = 1,156,913,486.62
  5. Step 5: Solve for x
    x = 1,156,913,486.62/38,672.64
  6. Step 6: Final answer
    x = 29,915.55

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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.