Home / 30,619.28-45,936.16-10,899.52

Finding the Fourth Proportional to 30,619.28, 45,936.16 and 10,899.52

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Solution

The fourth proportional to 30,619.28, 45,936.16 and 10,899.52 is: 16,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.28 : 45,936.16 = 10,899.52 : x
  2. Step 2: Convert to fraction form
    30,619.28/45,936.16 = 10,899.52/x
  3. Step 3: Cross multiply
    30,619.28x = 45,936.16 × 10,899.52
  4. Step 4: Simplify right side
    30,619.28x = 500,682,094.64
  5. Step 5: Solve for x
    x = 500,682,094.64/30,619.28
  6. Step 6: Final answer
    x = 16,351.86

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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.