Home / 27,638.64-38,141.30-15,063.39

Finding the Fourth Proportional to 27,638.64, 38,141.30 and 15,063.39

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Solution

The fourth proportional to 27,638.64, 38,141.30 and 15,063.39 is: 20,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.64 : 38,141.30 = 15,063.39 : x
  2. Step 2: Convert to fraction form
    27,638.64/38,141.30 = 15,063.39/x
  3. Step 3: Cross multiply
    27,638.64x = 38,141.30 × 15,063.39
  4. Step 4: Simplify right side
    27,638.64x = 574,537,314.67
  5. Step 5: Solve for x
    x = 574,537,314.67/27,638.64
  6. Step 6: Final answer
    x = 20,787.47

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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.