Home / 27,724.88-38,255.91-15,788.45

Finding the Fourth Proportional to 27,724.88, 38,255.91 and 15,788.45

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Solution

The fourth proportional to 27,724.88, 38,255.91 and 15,788.45 is: 21,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.88 : 38,255.91 = 15,788.45 : x
  2. Step 2: Convert to fraction form
    27,724.88/38,255.91 = 15,788.45/x
  3. Step 3: Cross multiply
    27,724.88x = 38,255.91 × 15,788.45
  4. Step 4: Simplify right side
    27,724.88x = 604,001,522.24
  5. Step 5: Solve for x
    x = 604,001,522.24/27,724.88
  6. Step 6: Final answer
    x = 21,785.54

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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.