Home / 15,831.60-21,824.28-11,632.56

Finding the Fourth Proportional to 15,831.60, 21,824.28 and 11,632.56

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Solution

The fourth proportional to 15,831.60, 21,824.28 and 11,632.56 is: 16,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.60 : 21,824.28 = 11,632.56 : x
  2. Step 2: Convert to fraction form
    15,831.60/21,824.28 = 11,632.56/x
  3. Step 3: Cross multiply
    15,831.60x = 21,824.28 × 11,632.56
  4. Step 4: Simplify right side
    15,831.60x = 253,872,246.56
  5. Step 5: Solve for x
    x = 253,872,246.56/15,831.60
  6. Step 6: Final answer
    x = 16,035.79

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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.