Home / 20,339.12-30,530.25-18,014.22

Finding the Fourth Proportional to 20,339.12, 30,530.25 and 18,014.22

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Solution

The fourth proportional to 20,339.12, 30,530.25 and 18,014.22 is: 27,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.12 : 30,530.25 = 18,014.22 : x
  2. Step 2: Convert to fraction form
    20,339.12/30,530.25 = 18,014.22/x
  3. Step 3: Cross multiply
    20,339.12x = 30,530.25 × 18,014.22
  4. Step 4: Simplify right side
    20,339.12x = 549,978,640.16
  5. Step 5: Solve for x
    x = 549,978,640.16/20,339.12
  6. Step 6: Final answer
    x = 27,040.43

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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.