Home / 20,646.20-28,492.14-11,695.56

Finding the Fourth Proportional to 20,646.20, 28,492.14 and 11,695.56

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Solution

The fourth proportional to 20,646.20, 28,492.14 and 11,695.56 is: 16,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.20 : 28,492.14 = 11,695.56 : x
  2. Step 2: Convert to fraction form
    20,646.20/28,492.14 = 11,695.56/x
  3. Step 3: Cross multiply
    20,646.20x = 28,492.14 × 11,695.56
  4. Step 4: Simplify right side
    20,646.20x = 333,231,532.90
  5. Step 5: Solve for x
    x = 333,231,532.90/20,646.20
  6. Step 6: Final answer
    x = 16,140.09

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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.