Home / 19,471.13-29,211.55-5,620.13

Finding the Fourth Proportional to 19,471.13, 29,211.55 and 5,620.13

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Solution

The fourth proportional to 19,471.13, 29,211.55 and 5,620.13 is: 8,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.13 : 29,211.55 = 5,620.13 : x
  2. Step 2: Convert to fraction form
    19,471.13/29,211.55 = 5,620.13/x
  3. Step 3: Cross multiply
    19,471.13x = 29,211.55 × 5,620.13
  4. Step 4: Simplify right side
    19,471.13x = 164,172,548.39
  5. Step 5: Solve for x
    x = 164,172,548.39/19,471.13
  6. Step 6: Final answer
    x = 8,431.59

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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.