Home / 21,617.37-29,831.37-12,057.54

Finding the Fourth Proportional to 21,617.37, 29,831.37 and 12,057.54

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Solution

The fourth proportional to 21,617.37, 29,831.37 and 12,057.54 is: 16,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.37 : 29,831.37 = 12,057.54 : x
  2. Step 2: Convert to fraction form
    21,617.37/29,831.37 = 12,057.54/x
  3. Step 3: Cross multiply
    21,617.37x = 29,831.37 × 12,057.54
  4. Step 4: Simplify right side
    21,617.37x = 359,692,937.03
  5. Step 5: Solve for x
    x = 359,692,937.03/21,617.37
  6. Step 6: Final answer
    x = 16,639.07

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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.