Home / 38,403.83-52,995.25-21,635.75

Finding the Fourth Proportional to 38,403.83, 52,995.25 and 21,635.75

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Solution

The fourth proportional to 38,403.83, 52,995.25 and 21,635.75 is: 29,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.83 : 52,995.25 = 21,635.75 : x
  2. Step 2: Convert to fraction form
    38,403.83/52,995.25 = 21,635.75/x
  3. Step 3: Cross multiply
    38,403.83x = 52,995.25 × 21,635.75
  4. Step 4: Simplify right side
    38,403.83x = 1,146,591,980.19
  5. Step 5: Solve for x
    x = 1,146,591,980.19/38,403.83
  6. Step 6: Final answer
    x = 29,856.19

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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.