Home / 38,118.15-52,598.97-21,121.92

Finding the Fourth Proportional to 38,118.15, 52,598.97 and 21,121.92

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Solution

The fourth proportional to 38,118.15, 52,598.97 and 21,121.92 is: 29,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118.15 : 52,598.97 = 21,121.92 : x
  2. Step 2: Convert to fraction form
    38,118.15/52,598.97 = 21,121.92/x
  3. Step 3: Cross multiply
    38,118.15x = 52,598.97 × 21,121.92
  4. Step 4: Simplify right side
    38,118.15x = 1,110,991,236.42
  5. Step 5: Solve for x
    x = 1,110,991,236.42/38,118.15
  6. Step 6: Final answer
    x = 29,145.99

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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.