Home / 38,146.20-52,644.90-21,155.88

Finding the Fourth Proportional to 38,146.20, 52,644.90 and 21,155.88

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Solution

The fourth proportional to 38,146.20, 52,644.90 and 21,155.88 is: 29,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.20 : 52,644.90 = 21,155.88 : x
  2. Step 2: Convert to fraction form
    38,146.20/52,644.90 = 21,155.88/x
  3. Step 3: Cross multiply
    38,146.20x = 52,644.90 × 21,155.88
  4. Step 4: Simplify right side
    38,146.20x = 1,113,749,187.01
  5. Step 5: Solve for x
    x = 1,113,749,187.01/38,146.20
  6. Step 6: Final answer
    x = 29,196.86

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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.