Home / 20,135.24-30,208.26-8,445.32

Finding the Fourth Proportional to 20,135.24, 30,208.26 and 8,445.32

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Solution

The fourth proportional to 20,135.24, 30,208.26 and 8,445.32 is: 12,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.24 : 30,208.26 = 8,445.32 : x
  2. Step 2: Convert to fraction form
    20,135.24/30,208.26 = 8,445.32/x
  3. Step 3: Cross multiply
    20,135.24x = 30,208.26 × 8,445.32
  4. Step 4: Simplify right side
    20,135.24x = 255,118,422.34
  5. Step 5: Solve for x
    x = 255,118,422.34/20,135.24
  6. Step 6: Final answer
    x = 12,670.24

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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.