Home / 20,522.36-28,309.58-12,137.24

Finding the Fourth Proportional to 20,522.36, 28,309.58 and 12,137.24

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Solution

The fourth proportional to 20,522.36, 28,309.58 and 12,137.24 is: 16,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.36 : 28,309.58 = 12,137.24 : x
  2. Step 2: Convert to fraction form
    20,522.36/28,309.58 = 12,137.24/x
  3. Step 3: Cross multiply
    20,522.36x = 28,309.58 × 12,137.24
  4. Step 4: Simplify right side
    20,522.36x = 343,600,166.76
  5. Step 5: Solve for x
    x = 343,600,166.76/20,522.36
  6. Step 6: Final answer
    x = 16,742.72

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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.