Home / 39,823.74-59,745.33-12,121.74

Finding the Fourth Proportional to 39,823.74, 59,745.33 and 12,121.74

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Solution

The fourth proportional to 39,823.74, 59,745.33 and 12,121.74 is: 18,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.74 : 59,745.33 = 12,121.74 : x
  2. Step 2: Convert to fraction form
    39,823.74/59,745.33 = 12,121.74/x
  3. Step 3: Cross multiply
    39,823.74x = 59,745.33 × 12,121.74
  4. Step 4: Simplify right side
    39,823.74x = 724,217,356.47
  5. Step 5: Solve for x
    x = 724,217,356.47/39,823.74
  6. Step 6: Final answer
    x = 18,185.57

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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.