Home / 21,054.87-29,066.24-13,099.66

Finding the Fourth Proportional to 21,054.87, 29,066.24 and 13,099.66

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Solution

The fourth proportional to 21,054.87, 29,066.24 and 13,099.66 is: 18,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.87 : 29,066.24 = 13,099.66 : x
  2. Step 2: Convert to fraction form
    21,054.87/29,066.24 = 13,099.66/x
  3. Step 3: Cross multiply
    21,054.87x = 29,066.24 × 13,099.66
  4. Step 4: Simplify right side
    21,054.87x = 380,757,821.56
  5. Step 5: Solve for x
    x = 380,757,821.56/21,054.87
  6. Step 6: Final answer
    x = 18,084.07

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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.