Home / 28,722.36-43,090.02-9,000.84

Finding the Fourth Proportional to 28,722.36, 43,090.02 and 9,000.84

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Solution

The fourth proportional to 28,722.36, 43,090.02 and 9,000.84 is: 13,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.36 : 43,090.02 = 9,000.84 : x
  2. Step 2: Convert to fraction form
    28,722.36/43,090.02 = 9,000.84/x
  3. Step 3: Cross multiply
    28,722.36x = 43,090.02 × 9,000.84
  4. Step 4: Simplify right side
    28,722.36x = 387,846,375.62
  5. Step 5: Solve for x
    x = 387,846,375.62/28,722.36
  6. Step 6: Final answer
    x = 13,503.29

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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.