Home / 30,260.08-45,378.78-13,619.44

Finding the Fourth Proportional to 30,260.08, 45,378.78 and 13,619.44

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Solution

The fourth proportional to 30,260.08, 45,378.78 and 13,619.44 is: 20,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.08 : 45,378.78 = 13,619.44 : x
  2. Step 2: Convert to fraction form
    30,260.08/45,378.78 = 13,619.44/x
  3. Step 3: Cross multiply
    30,260.08x = 45,378.78 × 13,619.44
  4. Step 4: Simplify right side
    30,260.08x = 618,033,571.48
  5. Step 5: Solve for x
    x = 618,033,571.48/30,260.08
  6. Step 6: Final answer
    x = 20,424.06

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1.5x scale

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.