Home / 27,789.57-38,349.18-15,214.32

Finding the Fourth Proportional to 27,789.57, 38,349.18 and 15,214.32

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Solution

The fourth proportional to 27,789.57, 38,349.18 and 15,214.32 is: 20,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.57 : 38,349.18 = 15,214.32 : x
  2. Step 2: Convert to fraction form
    27,789.57/38,349.18 = 15,214.32/x
  3. Step 3: Cross multiply
    27,789.57x = 38,349.18 × 15,214.32
  4. Step 4: Simplify right side
    27,789.57x = 583,456,696.26
  5. Step 5: Solve for x
    x = 583,456,696.26/27,789.57
  6. Step 6: Final answer
    x = 20,995.53

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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.