Home / 35,639.12-49,181.28-19,722.64

Finding the Fourth Proportional to 35,639.12, 49,181.28 and 19,722.64

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Solution

The fourth proportional to 35,639.12, 49,181.28 and 19,722.64 is: 27,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.12 : 49,181.28 = 19,722.64 : x
  2. Step 2: Convert to fraction form
    35,639.12/49,181.28 = 19,722.64/x
  3. Step 3: Cross multiply
    35,639.12x = 49,181.28 × 19,722.64
  4. Step 4: Simplify right side
    35,639.12x = 969,984,680.18
  5. Step 5: Solve for x
    x = 969,984,680.18/35,639.12
  6. Step 6: Final answer
    x = 27,216.85

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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.