Home / 47,760.12-65,889.72-28,864.44

Finding the Fourth Proportional to 47,760.12, 65,889.72 and 28,864.44

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Solution

The fourth proportional to 47,760.12, 65,889.72 and 28,864.44 is: 39,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,760.12 : 65,889.72 = 28,864.44 : x
  2. Step 2: Convert to fraction form
    47,760.12/65,889.72 = 28,864.44/x
  3. Step 3: Cross multiply
    47,760.12x = 65,889.72 × 28,864.44
  4. Step 4: Simplify right side
    47,760.12x = 1,901,869,869.56
  5. Step 5: Solve for x
    x = 1,901,869,869.56/47,760.12
  6. Step 6: Final answer
    x = 39,821.30

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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.