Home / 30,259.78-41,759.22-16,831.60

Finding the Fourth Proportional to 30,259.78, 41,759.22 and 16,831.60

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Solution

The fourth proportional to 30,259.78, 41,759.22 and 16,831.60 is: 23,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.78 : 41,759.22 = 16,831.60 : x
  2. Step 2: Convert to fraction form
    30,259.78/41,759.22 = 16,831.60/x
  3. Step 3: Cross multiply
    30,259.78x = 41,759.22 × 16,831.60
  4. Step 4: Simplify right side
    30,259.78x = 702,874,487.35
  5. Step 5: Solve for x
    x = 702,874,487.35/30,259.78
  6. Step 6: Final answer
    x = 23,228.01

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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.