Home / 47,911.08-66,117.42-28,791.18

Finding the Fourth Proportional to 47,911.08, 66,117.42 and 28,791.18

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Solution

The fourth proportional to 47,911.08, 66,117.42 and 28,791.18 is: 39,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,911.08 : 66,117.42 = 28,791.18 : x
  2. Step 2: Convert to fraction form
    47,911.08/66,117.42 = 28,791.18/x
  3. Step 3: Cross multiply
    47,911.08x = 66,117.42 × 28,791.18
  4. Step 4: Simplify right side
    47,911.08x = 1,903,598,540.36
  5. Step 5: Solve for x
    x = 1,903,598,540.36/47,911.08
  6. Step 6: Final answer
    x = 39,731.91

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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.