Home / 27,618.74-38,114.11-15,682.33

Finding the Fourth Proportional to 27,618.74, 38,114.11 and 15,682.33

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Solution

The fourth proportional to 27,618.74, 38,114.11 and 15,682.33 is: 21,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.74 : 38,114.11 = 15,682.33 : x
  2. Step 2: Convert to fraction form
    27,618.74/38,114.11 = 15,682.33/x
  3. Step 3: Cross multiply
    27,618.74x = 38,114.11 × 15,682.33
  4. Step 4: Simplify right side
    27,618.74x = 597,717,903.53
  5. Step 5: Solve for x
    x = 597,717,903.53/27,618.74
  6. Step 6: Final answer
    x = 21,641.75

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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.