Home / 27,965.06-38,594.50-20,879.18

Finding the Fourth Proportional to 27,965.06, 38,594.50 and 20,879.18

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Solution

The fourth proportional to 27,965.06, 38,594.50 and 20,879.18 is: 28,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.06 : 38,594.50 = 20,879.18 : x
  2. Step 2: Convert to fraction form
    27,965.06/38,594.50 = 20,879.18/x
  3. Step 3: Cross multiply
    27,965.06x = 38,594.50 × 20,879.18
  4. Step 4: Simplify right side
    27,965.06x = 805,821,512.51
  5. Step 5: Solve for x
    x = 805,821,512.51/27,965.06
  6. Step 6: Final answer
    x = 28,815.30

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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.