Home / 39,851.81-59,777.72-12,149.57

Finding the Fourth Proportional to 39,851.81, 59,777.72 and 12,149.57

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Solution

The fourth proportional to 39,851.81, 59,777.72 and 12,149.57 is: 18,224.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.81 : 59,777.72 = 12,149.57 : x
  2. Step 2: Convert to fraction form
    39,851.81/59,777.72 = 12,149.57/x
  3. Step 3: Cross multiply
    39,851.81x = 59,777.72 × 12,149.57
  4. Step 4: Simplify right side
    39,851.81x = 726,273,593.58
  5. Step 5: Solve for x
    x = 726,273,593.58/39,851.81
  6. Step 6: Final answer
    x = 18,224.36

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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.