Home / 31,007.13-42,788.91-17,579.61

Finding the Fourth Proportional to 31,007.13, 42,788.91 and 17,579.61

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Solution

The fourth proportional to 31,007.13, 42,788.91 and 17,579.61 is: 24,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,007.13 : 42,788.91 = 17,579.61 : x
  2. Step 2: Convert to fraction form
    31,007.13/42,788.91 = 17,579.61/x
  3. Step 3: Cross multiply
    31,007.13x = 42,788.91 × 17,579.61
  4. Step 4: Simplify right side
    31,007.13x = 752,212,350.13
  5. Step 5: Solve for x
    x = 752,212,350.13/31,007.13
  6. Step 6: Final answer
    x = 24,259.33

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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.