Home / 20,133.24-30,205.26-8,443.32

Finding the Fourth Proportional to 20,133.24, 30,205.26 and 8,443.32

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Solution

The fourth proportional to 20,133.24, 30,205.26 and 8,443.32 is: 12,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.24 : 30,205.26 = 8,443.32 : x
  2. Step 2: Convert to fraction form
    20,133.24/30,205.26 = 8,443.32/x
  3. Step 3: Cross multiply
    20,133.24x = 30,205.26 × 8,443.32
  4. Step 4: Simplify right side
    20,133.24x = 255,032,675.86
  5. Step 5: Solve for x
    x = 255,032,675.86/20,133.24
  6. Step 6: Final answer
    x = 12,667.24

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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.