Home / 27,215.76-37,557.41-15,278.79

Finding the Fourth Proportional to 27,215.76, 37,557.41 and 15,278.79

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Solution

The fourth proportional to 27,215.76, 37,557.41 and 15,278.79 is: 21,084.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.76 : 37,557.41 = 15,278.79 : x
  2. Step 2: Convert to fraction form
    27,215.76/37,557.41 = 15,278.79/x
  3. Step 3: Cross multiply
    27,215.76x = 37,557.41 × 15,278.79
  4. Step 4: Simplify right side
    27,215.76x = 573,831,780.33
  5. Step 5: Solve for x
    x = 573,831,780.33/27,215.76
  6. Step 6: Final answer
    x = 21,084.54

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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.