Home / 20,462.12-28,237.24-12,504.32

Finding the Fourth Proportional to 20,462.12, 28,237.24 and 12,504.32

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Solution

The fourth proportional to 20,462.12, 28,237.24 and 12,504.32 is: 17,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.12 : 28,237.24 = 12,504.32 : x
  2. Step 2: Convert to fraction form
    20,462.12/28,237.24 = 12,504.32/x
  3. Step 3: Cross multiply
    20,462.12x = 28,237.24 × 12,504.32
  4. Step 4: Simplify right side
    20,462.12x = 353,087,484.88
  5. Step 5: Solve for x
    x = 353,087,484.88/20,462.12
  6. Step 6: Final answer
    x = 17,255.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.