Home / 20,831.60-31,182.60-14,999.60

Finding the Fourth Proportional to 20,831.60, 31,182.60 and 14,999.60

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Solution

The fourth proportional to 20,831.60, 31,182.60 and 14,999.60 is: 22,452.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831.60 : 31,182.60 = 14,999.60 : x
  2. Step 2: Convert to fraction form
    20,831.60/31,182.60 = 14,999.60/x
  3. Step 3: Cross multiply
    20,831.60x = 31,182.60 × 14,999.60
  4. Step 4: Simplify right side
    20,831.60x = 467,726,526.96
  5. Step 5: Solve for x
    x = 467,726,526.96/20,831.60
  6. Step 6: Final answer
    x = 22,452.74

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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.