Home / 39,280.95-54,203.30-23,147.21

Finding the Fourth Proportional to 39,280.95, 54,203.30 and 23,147.21

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Solution

The fourth proportional to 39,280.95, 54,203.30 and 23,147.21 is: 31,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.95 : 54,203.30 = 23,147.21 : x
  2. Step 2: Convert to fraction form
    39,280.95/54,203.30 = 23,147.21/x
  3. Step 3: Cross multiply
    39,280.95x = 54,203.30 × 23,147.21
  4. Step 4: Simplify right side
    39,280.95x = 1,254,654,896.78
  5. Step 5: Solve for x
    x = 1,254,654,896.78/39,280.95
  6. Step 6: Final answer
    x = 31,940.55

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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.