Home / 19,406.66-29,090.54-13,561.70

Finding the Fourth Proportional to 19,406.66, 29,090.54 and 13,561.70

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Solution

The fourth proportional to 19,406.66, 29,090.54 and 13,561.70 is: 20,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.66 : 29,090.54 = 13,561.70 : x
  2. Step 2: Convert to fraction form
    19,406.66/29,090.54 = 13,561.70/x
  3. Step 3: Cross multiply
    19,406.66x = 29,090.54 × 13,561.70
  4. Step 4: Simplify right side
    19,406.66x = 394,517,064.77
  5. Step 5: Solve for x
    x = 394,517,064.77/19,406.66
  6. Step 6: Final answer
    x = 20,328.96

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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.