Home / 28,724.64-43,091.28-9,000.60

Finding the Fourth Proportional to 28,724.64, 43,091.28 and 9,000.60

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Solution

The fourth proportional to 28,724.64, 43,091.28 and 9,000.60 is: 13,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.64 : 43,091.28 = 9,000.60 : x
  2. Step 2: Convert to fraction form
    28,724.64/43,091.28 = 9,000.60/x
  3. Step 3: Cross multiply
    28,724.64x = 43,091.28 × 9,000.60
  4. Step 4: Simplify right side
    28,724.64x = 387,847,374.77
  5. Step 5: Solve for x
    x = 387,847,374.77/28,724.64
  6. Step 6: Final answer
    x = 13,502.25

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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.