Home / 28,991.01-43,485.11-16,989.85

Finding the Fourth Proportional to 28,991.01, 43,485.11 and 16,989.85

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Solution

The fourth proportional to 28,991.01, 43,485.11 and 16,989.85 is: 25,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.01 : 43,485.11 = 16,989.85 : x
  2. Step 2: Convert to fraction form
    28,991.01/43,485.11 = 16,989.85/x
  3. Step 3: Cross multiply
    28,991.01x = 43,485.11 × 16,989.85
  4. Step 4: Simplify right side
    28,991.01x = 738,805,496.13
  5. Step 5: Solve for x
    x = 738,805,496.13/28,991.01
  6. Step 6: Final answer
    x = 25,483.95

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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.