Home / 47,947.12-66,174.82-28,846.20

Finding the Fourth Proportional to 47,947.12, 66,174.82 and 28,846.20

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Solution

The fourth proportional to 47,947.12, 66,174.82 and 28,846.20 is: 39,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,947.12 : 66,174.82 = 28,846.20 : x
  2. Step 2: Convert to fraction form
    47,947.12/66,174.82 = 28,846.20/x
  3. Step 3: Cross multiply
    47,947.12x = 66,174.82 × 28,846.20
  4. Step 4: Simplify right side
    47,947.12x = 1,908,892,092.68
  5. Step 5: Solve for x
    x = 1,908,892,092.68/47,947.12
  6. Step 6: Final answer
    x = 39,812.45

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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.