Home / 27,728.56-38,265.51-15,153.58

Finding the Fourth Proportional to 27,728.56, 38,265.51 and 15,153.58

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Solution

The fourth proportional to 27,728.56, 38,265.51 and 15,153.58 is: 20,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.56 : 38,265.51 = 15,153.58 : x
  2. Step 2: Convert to fraction form
    27,728.56/38,265.51 = 15,153.58/x
  3. Step 3: Cross multiply
    27,728.56x = 38,265.51 × 15,153.58
  4. Step 4: Simplify right side
    27,728.56x = 579,859,467.03
  5. Step 5: Solve for x
    x = 579,859,467.03/27,728.56
  6. Step 6: Final answer
    x = 20,911.99

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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.