Home / 38,103.86-52,583.28-21,108.10

Finding the Fourth Proportional to 38,103.86, 52,583.28 and 21,108.10

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Solution

The fourth proportional to 38,103.86, 52,583.28 and 21,108.10 is: 29,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,103.86 : 52,583.28 = 21,108.10 : x
  2. Step 2: Convert to fraction form
    38,103.86/52,583.28 = 21,108.10/x
  3. Step 3: Cross multiply
    38,103.86x = 52,583.28 × 21,108.10
  4. Step 4: Simplify right side
    38,103.86x = 1,109,933,132.57
  5. Step 5: Solve for x
    x = 1,109,933,132.57/38,103.86
  6. Step 6: Final answer
    x = 29,129.15

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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.