Home / 28,469.46-42,705.75-11,831.16

Finding the Fourth Proportional to 28,469.46, 42,705.75 and 11,831.16

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Solution

The fourth proportional to 28,469.46, 42,705.75 and 11,831.16 is: 17,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.46 : 42,705.75 = 11,831.16 : x
  2. Step 2: Convert to fraction form
    28,469.46/42,705.75 = 11,831.16/x
  3. Step 3: Cross multiply
    28,469.46x = 42,705.75 × 11,831.16
  4. Step 4: Simplify right side
    28,469.46x = 505,258,561.17
  5. Step 5: Solve for x
    x = 505,258,561.17/28,469.46
  6. Step 6: Final answer
    x = 17,747.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.