Home / 27,990.73-38,627.24-15,243.93

Finding the Fourth Proportional to 27,990.73, 38,627.24 and 15,243.93

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Solution

The fourth proportional to 27,990.73, 38,627.24 and 15,243.93 is: 21,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.73 : 38,627.24 = 15,243.93 : x
  2. Step 2: Convert to fraction form
    27,990.73/38,627.24 = 15,243.93/x
  3. Step 3: Cross multiply
    27,990.73x = 38,627.24 × 15,243.93
  4. Step 4: Simplify right side
    27,990.73x = 588,830,866.43
  5. Step 5: Solve for x
    x = 588,830,866.43/27,990.73
  6. Step 6: Final answer
    x = 21,036.64

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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.