Home / 47,563.32-65,640.78-28,443.72

Finding the Fourth Proportional to 47,563.32, 65,640.78 and 28,443.72

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Solution

The fourth proportional to 47,563.32, 65,640.78 and 28,443.72 is: 39,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,563.32 : 65,640.78 = 28,443.72 : x
  2. Step 2: Convert to fraction form
    47,563.32/65,640.78 = 28,443.72/x
  3. Step 3: Cross multiply
    47,563.32x = 65,640.78 × 28,443.72
  4. Step 4: Simplify right side
    47,563.32x = 1,867,067,966.90
  5. Step 5: Solve for x
    x = 1,867,067,966.90/47,563.32
  6. Step 6: Final answer
    x = 39,254.37

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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.