Home / 27,638.96-38,141.75-15,063.71

Finding the Fourth Proportional to 27,638.96, 38,141.75 and 15,063.71

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Solution

The fourth proportional to 27,638.96, 38,141.75 and 15,063.71 is: 20,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.96 : 38,141.75 = 15,063.71 : x
  2. Step 2: Convert to fraction form
    27,638.96/38,141.75 = 15,063.71/x
  3. Step 3: Cross multiply
    27,638.96x = 38,141.75 × 15,063.71
  4. Step 4: Simplify right side
    27,638.96x = 574,556,260.89
  5. Step 5: Solve for x
    x = 574,556,260.89/27,638.96
  6. Step 6: Final answer
    x = 20,787.91

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1.5x scale

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.