Home / 39,980.25-55,177.62-23,213.25

Finding the Fourth Proportional to 39,980.25, 55,177.62 and 23,213.25

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Solution

The fourth proportional to 39,980.25, 55,177.62 and 23,213.25 is: 32,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.25 : 55,177.62 = 23,213.25 : x
  2. Step 2: Convert to fraction form
    39,980.25/55,177.62 = 23,213.25/x
  3. Step 3: Cross multiply
    39,980.25x = 55,177.62 × 23,213.25
  4. Step 4: Simplify right side
    39,980.25x = 1,280,851,887.47
  5. Step 5: Solve for x
    x = 1,280,851,887.47/39,980.25
  6. Step 6: Final answer
    x = 32,037.12

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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.