Home / 27,689.55-38,215.23-15,750.58

Finding the Fourth Proportional to 27,689.55, 38,215.23 and 15,750.58

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Solution

The fourth proportional to 27,689.55, 38,215.23 and 15,750.58 is: 21,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.55 : 38,215.23 = 15,750.58 : x
  2. Step 2: Convert to fraction form
    27,689.55/38,215.23 = 15,750.58/x
  3. Step 3: Cross multiply
    27,689.55x = 38,215.23 × 15,750.58
  4. Step 4: Simplify right side
    27,689.55x = 601,912,037.33
  5. Step 5: Solve for x
    x = 601,912,037.33/27,689.55
  6. Step 6: Final answer
    x = 21,737.88

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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.