Home / 30,115.12-45,180.50-11,395.28

Finding the Fourth Proportional to 30,115.12, 45,180.50 and 11,395.28

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Solution

The fourth proportional to 30,115.12, 45,180.50 and 11,395.28 is: 17,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.12 : 45,180.50 = 11,395.28 : x
  2. Step 2: Convert to fraction form
    30,115.12/45,180.50 = 11,395.28/x
  3. Step 3: Cross multiply
    30,115.12x = 45,180.50 × 11,395.28
  4. Step 4: Simplify right side
    30,115.12x = 514,844,448.04
  5. Step 5: Solve for x
    x = 514,844,448.04/30,115.12
  6. Step 6: Final answer
    x = 17,095.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.