Home / 27,579.72-38,059.46-15,314.70

Finding the Fourth Proportional to 27,579.72, 38,059.46 and 15,314.70

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Solution

The fourth proportional to 27,579.72, 38,059.46 and 15,314.70 is: 21,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.72 : 38,059.46 = 15,314.70 : x
  2. Step 2: Convert to fraction form
    27,579.72/38,059.46 = 15,314.70/x
  3. Step 3: Cross multiply
    27,579.72x = 38,059.46 × 15,314.70
  4. Step 4: Simplify right side
    27,579.72x = 582,869,212.06
  5. Step 5: Solve for x
    x = 582,869,212.06/27,579.72
  6. Step 6: Final answer
    x = 21,133.98

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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.