Home / 27,728.52-38,268.02-15,795.72

Finding the Fourth Proportional to 27,728.52, 38,268.02 and 15,795.72

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Solution

The fourth proportional to 27,728.52, 38,268.02 and 15,795.72 is: 21,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.52 : 38,268.02 = 15,795.72 : x
  2. Step 2: Convert to fraction form
    27,728.52/38,268.02 = 15,795.72/x
  3. Step 3: Cross multiply
    27,728.52x = 38,268.02 × 15,795.72
  4. Step 4: Simplify right side
    27,728.52x = 604,470,928.87
  5. Step 5: Solve for x
    x = 604,470,928.87/27,728.52
  6. Step 6: Final answer
    x = 21,799.61

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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.