Home / 20,347.85-30,568.68-19,507.11

Finding the Fourth Proportional to 20,347.85, 30,568.68 and 19,507.11

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Solution

The fourth proportional to 20,347.85, 30,568.68 and 19,507.11 is: 29,305.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.85 : 30,568.68 = 19,507.11 : x
  2. Step 2: Convert to fraction form
    20,347.85/30,568.68 = 19,507.11/x
  3. Step 3: Cross multiply
    20,347.85x = 30,568.68 × 19,507.11
  4. Step 4: Simplify right side
    20,347.85x = 596,306,603.31
  5. Step 5: Solve for x
    x = 596,306,603.31/20,347.85
  6. Step 6: Final answer
    x = 29,305.63

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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.