Home / 39,760.96-59,641.48-18,685.54

Finding the Fourth Proportional to 39,760.96, 59,641.48 and 18,685.54

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Solution

The fourth proportional to 39,760.96, 59,641.48 and 18,685.54 is: 28,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,760.96 : 59,641.48 = 18,685.54 : x
  2. Step 2: Convert to fraction form
    39,760.96/59,641.48 = 18,685.54/x
  3. Step 3: Cross multiply
    39,760.96x = 59,641.48 × 18,685.54
  4. Step 4: Simplify right side
    39,760.96x = 1,114,433,260.20
  5. Step 5: Solve for x
    x = 1,114,433,260.20/39,760.96
  6. Step 6: Final answer
    x = 28,028.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.