Home / 27,448.24-37,878.18-15,511.20

Finding the Fourth Proportional to 27,448.24, 37,878.18 and 15,511.20

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Solution

The fourth proportional to 27,448.24, 37,878.18 and 15,511.20 is: 21,405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,448.24 : 37,878.18 = 15,511.20 : x
  2. Step 2: Convert to fraction form
    27,448.24/37,878.18 = 15,511.20/x
  3. Step 3: Cross multiply
    27,448.24x = 37,878.18 × 15,511.20
  4. Step 4: Simplify right side
    27,448.24x = 587,536,025.62
  5. Step 5: Solve for x
    x = 587,536,025.62/27,448.24
  6. Step 6: Final answer
    x = 21,405.23

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1.5x scale

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.