Home / 30,238.55-45,342.27-13,584.29

Finding the Fourth Proportional to 30,238.55, 45,342.27 and 13,584.29

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Solution

The fourth proportional to 30,238.55, 45,342.27 and 13,584.29 is: 20,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.55 : 45,342.27 = 13,584.29 : x
  2. Step 2: Convert to fraction form
    30,238.55/45,342.27 = 13,584.29/x
  3. Step 3: Cross multiply
    30,238.55x = 45,342.27 × 13,584.29
  4. Step 4: Simplify right side
    30,238.55x = 615,942,544.94
  5. Step 5: Solve for x
    x = 615,942,544.94/30,238.55
  6. Step 6: Final answer
    x = 20,369.45

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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.