Home / 27,905.74-38,520.03-18,477.34

Finding the Fourth Proportional to 27,905.74, 38,520.03 and 18,477.34

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Solution

The fourth proportional to 27,905.74, 38,520.03 and 18,477.34 is: 25,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.74 : 38,520.03 = 18,477.34 : x
  2. Step 2: Convert to fraction form
    27,905.74/38,520.03 = 18,477.34/x
  3. Step 3: Cross multiply
    27,905.74x = 38,520.03 × 18,477.34
  4. Step 4: Simplify right side
    27,905.74x = 711,747,691.12
  5. Step 5: Solve for x
    x = 711,747,691.12/27,905.74
  6. Step 6: Final answer
    x = 25,505.42

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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.