Home / 38,345.75-52,917.14-21,579.11

Finding the Fourth Proportional to 38,345.75, 52,917.14 and 21,579.11

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Solution

The fourth proportional to 38,345.75, 52,917.14 and 21,579.11 is: 29,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.75 : 52,917.14 = 21,579.11 : x
  2. Step 2: Convert to fraction form
    38,345.75/52,917.14 = 21,579.11/x
  3. Step 3: Cross multiply
    38,345.75x = 52,917.14 × 21,579.11
  4. Step 4: Simplify right side
    38,345.75x = 1,141,904,677.05
  5. Step 5: Solve for x
    x = 1,141,904,677.05/38,345.75
  6. Step 6: Final answer
    x = 29,779.17

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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.