Home / 27,825.78-38,399.73-15,079.02

Finding the Fourth Proportional to 27,825.78, 38,399.73 and 15,079.02

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Solution

The fourth proportional to 27,825.78, 38,399.73 and 15,079.02 is: 20,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.78 : 38,399.73 = 15,079.02 : x
  2. Step 2: Convert to fraction form
    27,825.78/38,399.73 = 15,079.02/x
  3. Step 3: Cross multiply
    27,825.78x = 38,399.73 × 15,079.02
  4. Step 4: Simplify right side
    27,825.78x = 579,030,296.66
  5. Step 5: Solve for x
    x = 579,030,296.66/27,825.78
  6. Step 6: Final answer
    x = 20,809.13

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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.