Home / 22,014.69-30,378.19-12,453.40

Finding the Fourth Proportional to 22,014.69, 30,378.19 and 12,453.40

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Solution

The fourth proportional to 22,014.69, 30,378.19 and 12,453.40 is: 17,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,014.69 : 30,378.19 = 12,453.40 : x
  2. Step 2: Convert to fraction form
    22,014.69/30,378.19 = 12,453.40/x
  3. Step 3: Cross multiply
    22,014.69x = 30,378.19 × 12,453.40
  4. Step 4: Simplify right side
    22,014.69x = 378,311,610.66
  5. Step 5: Solve for x
    x = 378,311,610.66/22,014.69
  6. Step 6: Final answer
    x = 17,184.51

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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.