Home / 28,309.83-39,066.62-15,734.31

Finding the Fourth Proportional to 28,309.83, 39,066.62 and 15,734.31

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Solution

The fourth proportional to 28,309.83, 39,066.62 and 15,734.31 is: 21,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.83 : 39,066.62 = 15,734.31 : x
  2. Step 2: Convert to fraction form
    28,309.83/39,066.62 = 15,734.31/x
  3. Step 3: Cross multiply
    28,309.83x = 39,066.62 × 15,734.31
  4. Step 4: Simplify right side
    28,309.83x = 614,686,231.06
  5. Step 5: Solve for x
    x = 614,686,231.06/28,309.83
  6. Step 6: Final answer
    x = 21,712.82

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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.