Home / 43,919.19-65,878.81-10,639.28

Finding the Fourth Proportional to 43,919.19, 65,878.81 and 10,639.28

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Solution

The fourth proportional to 43,919.19, 65,878.81 and 10,639.28 is: 15,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,919.19 : 65,878.81 = 10,639.28 : x
  2. Step 2: Convert to fraction form
    43,919.19/65,878.81 = 10,639.28/x
  3. Step 3: Cross multiply
    43,919.19x = 65,878.81 × 10,639.28
  4. Step 4: Simplify right side
    43,919.19x = 700,903,243.76
  5. Step 5: Solve for x
    x = 700,903,243.76/43,919.19
  6. Step 6: Final answer
    x = 15,958.93

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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.