Home / 47,845.44-66,029.76-28,987.20

Finding the Fourth Proportional to 47,845.44, 66,029.76 and 28,987.20

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Solution

The fourth proportional to 47,845.44, 66,029.76 and 28,987.20 is: 40,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,845.44 : 66,029.76 = 28,987.20 : x
  2. Step 2: Convert to fraction form
    47,845.44/66,029.76 = 28,987.20/x
  3. Step 3: Cross multiply
    47,845.44x = 66,029.76 × 28,987.20
  4. Step 4: Simplify right side
    47,845.44x = 1,914,017,859.07
  5. Step 5: Solve for x
    x = 1,914,017,859.07/47,845.44
  6. Step 6: Final answer
    x = 40,004.19

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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.