Home / 19,983.68-29,914.08-12,561.92

Finding the Fourth Proportional to 19,983.68, 29,914.08 and 12,561.92

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Solution

The fourth proportional to 19,983.68, 29,914.08 and 12,561.92 is: 18,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.68 : 29,914.08 = 12,561.92 : x
  2. Step 2: Convert to fraction form
    19,983.68/29,914.08 = 12,561.92/x
  3. Step 3: Cross multiply
    19,983.68x = 29,914.08 × 12,561.92
  4. Step 4: Simplify right side
    19,983.68x = 375,778,279.83
  5. Step 5: Solve for x
    x = 375,778,279.83/19,983.68
  6. Step 6: Final answer
    x = 18,804.26

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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.