Home / 38,190.32-57,308.16-20,659.76

Finding the Fourth Proportional to 38,190.32, 57,308.16 and 20,659.76

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Solution

The fourth proportional to 38,190.32, 57,308.16 and 20,659.76 is: 31,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,190.32 : 57,308.16 = 20,659.76 : x
  2. Step 2: Convert to fraction form
    38,190.32/57,308.16 = 20,659.76/x
  3. Step 3: Cross multiply
    38,190.32x = 57,308.16 × 20,659.76
  4. Step 4: Simplify right side
    38,190.32x = 1,183,972,831.64
  5. Step 5: Solve for x
    x = 1,183,972,831.64/38,190.32
  6. Step 6: Final answer
    x = 31,001.91

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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.