Home / 27,631.72-38,131.79-15,056.47

Finding the Fourth Proportional to 27,631.72, 38,131.79 and 15,056.47

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Solution

The fourth proportional to 27,631.72, 38,131.79 and 15,056.47 is: 20,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.72 : 38,131.79 = 15,056.47 : x
  2. Step 2: Convert to fraction form
    27,631.72/38,131.79 = 15,056.47/x
  3. Step 3: Cross multiply
    27,631.72x = 38,131.79 × 15,056.47
  4. Step 4: Simplify right side
    27,631.72x = 574,129,961.52
  5. Step 5: Solve for x
    x = 574,129,961.52/27,631.72
  6. Step 6: Final answer
    x = 20,777.93

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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.