Home / 38,345.82-52,917.66-21,578.82

Finding the Fourth Proportional to 38,345.82, 52,917.66 and 21,578.82

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Solution

The fourth proportional to 38,345.82, 52,917.66 and 21,578.82 is: 29,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.82 : 52,917.66 = 21,578.82 : x
  2. Step 2: Convert to fraction form
    38,345.82/52,917.66 = 21,578.82/x
  3. Step 3: Cross multiply
    38,345.82x = 52,917.66 × 21,578.82
  4. Step 4: Simplify right side
    38,345.82x = 1,141,900,659.96
  5. Step 5: Solve for x
    x = 1,141,900,659.96/38,345.82
  6. Step 6: Final answer
    x = 29,779.01

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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.