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Finding the Fourth Proportional to 38,005.40, 57,008.10 and 16,945.40

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Solution

The fourth proportional to 38,005.40, 57,008.10 and 16,945.40 is: 25,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.40 : 57,008.10 = 16,945.40 : x
  2. Step 2: Convert to fraction form
    38,005.40/57,008.10 = 16,945.40/x
  3. Step 3: Cross multiply
    38,005.40x = 57,008.10 × 16,945.40
  4. Step 4: Simplify right side
    38,005.40x = 966,025,057.74
  5. Step 5: Solve for x
    x = 966,025,057.74/38,005.40
  6. Step 6: Final answer
    x = 25,418.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.