Home / 47,725.60-65,831.88-30,724.24

Finding the Fourth Proportional to 47,725.60, 65,831.88 and 30,724.24

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Solution

The fourth proportional to 47,725.60, 65,831.88 and 30,724.24 is: 42,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,725.60 : 65,831.88 = 30,724.24 : x
  2. Step 2: Convert to fraction form
    47,725.60/65,831.88 = 30,724.24/x
  3. Step 3: Cross multiply
    47,725.60x = 65,831.88 × 30,724.24
  4. Step 4: Simplify right side
    47,725.60x = 2,022,634,480.77
  5. Step 5: Solve for x
    x = 2,022,634,480.77/47,725.60
  6. Step 6: Final answer
    x = 42,380.49

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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.