Home / 27,768.35-38,322.38-15,831.99

Finding the Fourth Proportional to 27,768.35, 38,322.38 and 15,831.99

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Solution

The fourth proportional to 27,768.35, 38,322.38 and 15,831.99 is: 21,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.35 : 38,322.38 = 15,831.99 : x
  2. Step 2: Convert to fraction form
    27,768.35/38,322.38 = 15,831.99/x
  3. Step 3: Cross multiply
    27,768.35x = 38,322.38 × 15,831.99
  4. Step 4: Simplify right side
    27,768.35x = 606,719,576.52
  5. Step 5: Solve for x
    x = 606,719,576.52/27,768.35
  6. Step 6: Final answer
    x = 21,849.32

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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.