Home / 27,661.64-38,160.90-18,705.92

Finding the Fourth Proportional to 27,661.64, 38,160.90 and 18,705.92

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Solution

The fourth proportional to 27,661.64, 38,160.90 and 18,705.92 is: 25,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.64 : 38,160.90 = 18,705.92 : x
  2. Step 2: Convert to fraction form
    27,661.64/38,160.90 = 18,705.92/x
  3. Step 3: Cross multiply
    27,661.64x = 38,160.90 × 18,705.92
  4. Step 4: Simplify right side
    27,661.64x = 713,834,742.53
  5. Step 5: Solve for x
    x = 713,834,742.53/27,661.64
  6. Step 6: Final answer
    x = 25,805.94

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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.