Home / 28,980.45-39,993.53-16,233.53

Finding the Fourth Proportional to 28,980.45, 39,993.53 and 16,233.53

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Solution

The fourth proportional to 28,980.45, 39,993.53 and 16,233.53 is: 22,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.45 : 39,993.53 = 16,233.53 : x
  2. Step 2: Convert to fraction form
    28,980.45/39,993.53 = 16,233.53/x
  3. Step 3: Cross multiply
    28,980.45x = 39,993.53 × 16,233.53
  4. Step 4: Simplify right side
    28,980.45x = 649,235,887.93
  5. Step 5: Solve for x
    x = 649,235,887.93/28,980.45
  6. Step 6: Final answer
    x = 22,402.55

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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.