Home / 30,119.64-45,206.99-15,338.76

Finding the Fourth Proportional to 30,119.64, 45,206.99 and 15,338.76

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Solution

The fourth proportional to 30,119.64, 45,206.99 and 15,338.76 is: 23,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.64 : 45,206.99 = 15,338.76 : x
  2. Step 2: Convert to fraction form
    30,119.64/45,206.99 = 15,338.76/x
  3. Step 3: Cross multiply
    30,119.64x = 45,206.99 × 15,338.76
  4. Step 4: Simplify right side
    30,119.64x = 693,419,169.93
  5. Step 5: Solve for x
    x = 693,419,169.93/30,119.64
  6. Step 6: Final answer
    x = 23,022.16

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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.