Home / 27,632.59-38,102.79-18,664.53

Finding the Fourth Proportional to 27,632.59, 38,102.79 and 18,664.53

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Solution

The fourth proportional to 27,632.59, 38,102.79 and 18,664.53 is: 25,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,632.59 : 38,102.79 = 18,664.53 : x
  2. Step 2: Convert to fraction form
    27,632.59/38,102.79 = 18,664.53/x
  3. Step 3: Cross multiply
    27,632.59x = 38,102.79 × 18,664.53
  4. Step 4: Simplify right side
    27,632.59x = 711,170,667.04
  5. Step 5: Solve for x
    x = 711,170,667.04/27,632.59
  6. Step 6: Final answer
    x = 25,736.66

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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.