Home / 30,399.68-45,515.64-15,577.04

Finding the Fourth Proportional to 30,399.68, 45,515.64 and 15,577.04

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Solution

The fourth proportional to 30,399.68, 45,515.64 and 15,577.04 is: 23,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.68 : 45,515.64 = 15,577.04 : x
  2. Step 2: Convert to fraction form
    30,399.68/45,515.64 = 15,577.04/x
  3. Step 3: Cross multiply
    30,399.68x = 45,515.64 × 15,577.04
  4. Step 4: Simplify right side
    30,399.68x = 708,998,944.91
  5. Step 5: Solve for x
    x = 708,998,944.91/30,399.68
  6. Step 6: Final answer
    x = 23,322.58

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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.