Home / 29,039.13-40,086.27-19,620.45

Finding the Fourth Proportional to 29,039.13, 40,086.27 and 19,620.45

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Solution

The fourth proportional to 29,039.13, 40,086.27 and 19,620.45 is: 27,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039.13 : 40,086.27 = 19,620.45 : x
  2. Step 2: Convert to fraction form
    29,039.13/40,086.27 = 19,620.45/x
  3. Step 3: Cross multiply
    29,039.13x = 40,086.27 × 19,620.45
  4. Step 4: Simplify right side
    29,039.13x = 786,510,656.22
  5. Step 5: Solve for x
    x = 786,510,656.22/29,039.13
  6. Step 6: Final answer
    x = 27,084.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.