Home / 19,983.49-30,009.26-19,147.57

Finding the Fourth Proportional to 19,983.49, 30,009.26 and 19,147.57

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Solution

The fourth proportional to 19,983.49, 30,009.26 and 19,147.57 is: 28,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.49 : 30,009.26 = 19,147.57 : x
  2. Step 2: Convert to fraction form
    19,983.49/30,009.26 = 19,147.57/x
  3. Step 3: Cross multiply
    19,983.49x = 30,009.26 × 19,147.57
  4. Step 4: Simplify right side
    19,983.49x = 574,604,406.50
  5. Step 5: Solve for x
    x = 574,604,406.50/19,983.49
  6. Step 6: Final answer
    x = 28,753.96

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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.