Home / 27,415.35-37,831.07-15,479.87

Finding the Fourth Proportional to 27,415.35, 37,831.07 and 15,479.87

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Solution

The fourth proportional to 27,415.35, 37,831.07 and 15,479.87 is: 21,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,415.35 : 37,831.07 = 15,479.87 : x
  2. Step 2: Convert to fraction form
    27,415.35/37,831.07 = 15,479.87/x
  3. Step 3: Cross multiply
    27,415.35x = 37,831.07 × 15,479.87
  4. Step 4: Simplify right side
    27,415.35x = 585,619,779.01
  5. Step 5: Solve for x
    x = 585,619,779.01/27,415.35
  6. Step 6: Final answer
    x = 21,361.02

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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.