Home / 27,687.42-38,205.07-15,586.37

Finding the Fourth Proportional to 27,687.42, 38,205.07 and 15,586.37

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Solution

The fourth proportional to 27,687.42, 38,205.07 and 15,586.37 is: 21,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.42 : 38,205.07 = 15,586.37 : x
  2. Step 2: Convert to fraction form
    27,687.42/38,205.07 = 15,586.37/x
  3. Step 3: Cross multiply
    27,687.42x = 38,205.07 × 15,586.37
  4. Step 4: Simplify right side
    27,687.42x = 595,478,485.08
  5. Step 5: Solve for x
    x = 595,478,485.08/27,687.42
  6. Step 6: Final answer
    x = 21,507.19

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Double scale
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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.