Home / 30,276.88-45,399.68-13,622.74

Finding the Fourth Proportional to 30,276.88, 45,399.68 and 13,622.74

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Solution

The fourth proportional to 30,276.88, 45,399.68 and 13,622.74 is: 20,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.88 : 45,399.68 = 13,622.74 : x
  2. Step 2: Convert to fraction form
    30,276.88/45,399.68 = 13,622.74/x
  3. Step 3: Cross multiply
    30,276.88x = 45,399.68 × 13,622.74
  4. Step 4: Simplify right side
    30,276.88x = 618,468,036.72
  5. Step 5: Solve for x
    x = 618,468,036.72/30,276.88
  6. Step 6: Final answer
    x = 20,427.07

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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.