Home / 38,105.76-52,583.41-21,108.86

Finding the Fourth Proportional to 38,105.76, 52,583.41 and 21,108.86

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Solution

The fourth proportional to 38,105.76, 52,583.41 and 21,108.86 is: 29,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.76 : 52,583.41 = 21,108.86 : x
  2. Step 2: Convert to fraction form
    38,105.76/52,583.41 = 21,108.86/x
  3. Step 3: Cross multiply
    38,105.76x = 52,583.41 × 21,108.86
  4. Step 4: Simplify right side
    38,105.76x = 1,109,975,840.01
  5. Step 5: Solve for x
    x = 1,109,975,840.01/38,105.76
  6. Step 6: Final answer
    x = 29,128.82

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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.