Home / 20,156.06-30,230.14-19,155.88

Finding the Fourth Proportional to 20,156.06, 30,230.14 and 19,155.88

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Solution

The fourth proportional to 20,156.06, 30,230.14 and 19,155.88 is: 28,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.06 : 30,230.14 = 19,155.88 : x
  2. Step 2: Convert to fraction form
    20,156.06/30,230.14 = 19,155.88/x
  3. Step 3: Cross multiply
    20,156.06x = 30,230.14 × 19,155.88
  4. Step 4: Simplify right side
    20,156.06x = 579,084,934.22
  5. Step 5: Solve for x
    x = 579,084,934.22/20,156.06
  6. Step 6: Final answer
    x = 28,730.07

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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.