Home / 28,740.75-39,661.85-16,165.53

Finding the Fourth Proportional to 28,740.75, 39,661.85 and 16,165.53

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Solution

The fourth proportional to 28,740.75, 39,661.85 and 16,165.53 is: 22,308.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.75 : 39,661.85 = 16,165.53 : x
  2. Step 2: Convert to fraction form
    28,740.75/39,661.85 = 16,165.53/x
  3. Step 3: Cross multiply
    28,740.75x = 39,661.85 × 16,165.53
  4. Step 4: Simplify right side
    28,740.75x = 641,154,745.20
  5. Step 5: Solve for x
    x = 641,154,745.20/28,740.75
  6. Step 6: Final answer
    x = 22,308.21

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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.