Home / 30,286.28-45,400.26-19,159.04

Finding the Fourth Proportional to 30,286.28, 45,400.26 and 19,159.04

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Solution

The fourth proportional to 30,286.28, 45,400.26 and 19,159.04 is: 28,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.28 : 45,400.26 = 19,159.04 : x
  2. Step 2: Convert to fraction form
    30,286.28/45,400.26 = 19,159.04/x
  3. Step 3: Cross multiply
    30,286.28x = 45,400.26 × 19,159.04
  4. Step 4: Simplify right side
    30,286.28x = 869,825,397.35
  5. Step 5: Solve for x
    x = 869,825,397.35/30,286.28
  6. Step 6: Final answer
    x = 28,720.11

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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.