Home / 38,161.72-52,658.16-21,165.76

Finding the Fourth Proportional to 38,161.72, 52,658.16 and 21,165.76

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Solution

The fourth proportional to 38,161.72, 52,658.16 and 21,165.76 is: 29,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.72 : 52,658.16 = 21,165.76 : x
  2. Step 2: Convert to fraction form
    38,161.72/52,658.16 = 21,165.76/x
  3. Step 3: Cross multiply
    38,161.72x = 52,658.16 × 21,165.76
  4. Step 4: Simplify right side
    38,161.72x = 1,114,549,976.60
  5. Step 5: Solve for x
    x = 1,114,549,976.60/38,161.72
  6. Step 6: Final answer
    x = 29,205.97

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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.