Home / 27,638.58-38,141.28-15,063.30

Finding the Fourth Proportional to 27,638.58, 38,141.28 and 15,063.30

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Solution

The fourth proportional to 27,638.58, 38,141.28 and 15,063.30 is: 20,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.58 : 38,141.28 = 15,063.30 : x
  2. Step 2: Convert to fraction form
    27,638.58/38,141.28 = 15,063.30/x
  3. Step 3: Cross multiply
    27,638.58x = 38,141.28 × 15,063.30
  4. Step 4: Simplify right side
    27,638.58x = 574,533,543.02
  5. Step 5: Solve for x
    x = 574,533,543.02/27,638.58
  6. Step 6: Final answer
    x = 20,787.38

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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.