Home / 38,100.61-52,579.27-21,105.12

Finding the Fourth Proportional to 38,100.61, 52,579.27 and 21,105.12

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Solution

The fourth proportional to 38,100.61, 52,579.27 and 21,105.12 is: 29,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,100.61 : 52,579.27 = 21,105.12 : x
  2. Step 2: Convert to fraction form
    38,100.61/52,579.27 = 21,105.12/x
  3. Step 3: Cross multiply
    38,100.61x = 52,579.27 × 21,105.12
  4. Step 4: Simplify right side
    38,100.61x = 1,109,691,464.06
  5. Step 5: Solve for x
    x = 1,109,691,464.06/38,100.61
  6. Step 6: Final answer
    x = 29,125.29

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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.