Home / 47,847.18-66,022.05-28,722.90

Finding the Fourth Proportional to 47,847.18, 66,022.05 and 28,722.90

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Solution

The fourth proportional to 47,847.18, 66,022.05 and 28,722.90 is: 39,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847.18 : 66,022.05 = 28,722.90 : x
  2. Step 2: Convert to fraction form
    47,847.18/66,022.05 = 28,722.90/x
  3. Step 3: Cross multiply
    47,847.18x = 66,022.05 × 28,722.90
  4. Step 4: Simplify right side
    47,847.18x = 1,896,344,739.95
  5. Step 5: Solve for x
    x = 1,896,344,739.95/47,847.18
  6. Step 6: Final answer
    x = 39,633.36

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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.