Home / 28,147.40-38,831.33-16,208.20

Finding the Fourth Proportional to 28,147.40, 38,831.33 and 16,208.20

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Solution

The fourth proportional to 28,147.40, 38,831.33 and 16,208.20 is: 22,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.40 : 38,831.33 = 16,208.20 : x
  2. Step 2: Convert to fraction form
    28,147.40/38,831.33 = 16,208.20/x
  3. Step 3: Cross multiply
    28,147.40x = 38,831.33 × 16,208.20
  4. Step 4: Simplify right side
    28,147.40x = 629,386,051.97
  5. Step 5: Solve for x
    x = 629,386,051.97/28,147.40
  6. Step 6: Final answer
    x = 22,360.36

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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.