Home / 27,723.96-38,259-15,148.80

Finding the Fourth Proportional to 27,723.96, 38,259 and 15,148.80

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Solution

The fourth proportional to 27,723.96, 38,259 and 15,148.80 is: 20,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,723.96 : 38,259 = 15,148.80 : x
  2. Step 2: Convert to fraction form
    27,723.96/38,259 = 15,148.80/x
  3. Step 3: Cross multiply
    27,723.96x = 38,259 × 15,148.80
  4. Step 4: Simplify right side
    27,723.96x = 579,577,939.20
  5. Step 5: Solve for x
    x = 579,577,939.20/27,723.96
  6. Step 6: Final answer
    x = 20,905.31

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Double scale
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Similar ratio
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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.