Home / 10,220.91-15,331.32-2,825.35

Finding the Fourth Proportional to 10,220.91, 15,331.32 and 2,825.35

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Solution

The fourth proportional to 10,220.91, 15,331.32 and 2,825.35 is: 4,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.91 : 15,331.32 = 2,825.35 : x
  2. Step 2: Convert to fraction form
    10,220.91/15,331.32 = 2,825.35/x
  3. Step 3: Cross multiply
    10,220.91x = 15,331.32 × 2,825.35
  4. Step 4: Simplify right side
    10,220.91x = 43,316,344.96
  5. Step 5: Solve for x
    x = 43,316,344.96/10,220.91
  6. Step 6: Final answer
    x = 4,238.01

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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.