Home / 47,601.28-65,689.86-28,738.54

Finding the Fourth Proportional to 47,601.28, 65,689.86 and 28,738.54

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Solution

The fourth proportional to 47,601.28, 65,689.86 and 28,738.54 is: 39,659.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,601.28 : 65,689.86 = 28,738.54 : x
  2. Step 2: Convert to fraction form
    47,601.28/65,689.86 = 28,738.54/x
  3. Step 3: Cross multiply
    47,601.28x = 65,689.86 × 28,738.54
  4. Step 4: Simplify right side
    47,601.28x = 1,887,830,669.20
  5. Step 5: Solve for x
    x = 1,887,830,669.20/47,601.28
  6. Step 6: Final answer
    x = 39,659.24

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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.