Home / 28,986.20-40,004.70-16,244.30

Finding the Fourth Proportional to 28,986.20, 40,004.70 and 16,244.30

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Solution

The fourth proportional to 28,986.20, 40,004.70 and 16,244.30 is: 22,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.20 : 40,004.70 = 16,244.30 : x
  2. Step 2: Convert to fraction form
    28,986.20/40,004.70 = 16,244.30/x
  3. Step 3: Cross multiply
    28,986.20x = 40,004.70 × 16,244.30
  4. Step 4: Simplify right side
    28,986.20x = 649,848,348.21
  5. Step 5: Solve for x
    x = 649,848,348.21/28,986.20
  6. Step 6: Final answer
    x = 22,419.23

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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.