Home / 27,664.46-38,132.33-18,708.70

Finding the Fourth Proportional to 27,664.46, 38,132.33 and 18,708.70

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Solution

The fourth proportional to 27,664.46, 38,132.33 and 18,708.70 is: 25,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.46 : 38,132.33 = 18,708.70 : x
  2. Step 2: Convert to fraction form
    27,664.46/38,132.33 = 18,708.70/x
  3. Step 3: Cross multiply
    27,664.46x = 38,132.33 × 18,708.70
  4. Step 4: Simplify right side
    27,664.46x = 713,406,322.27
  5. Step 5: Solve for x
    x = 713,406,322.27/27,664.46
  6. Step 6: Final answer
    x = 25,787.83

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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.