Home / 22,278.89-30,741.94-13,323.12

Finding the Fourth Proportional to 22,278.89, 30,741.94 and 13,323.12

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Solution

The fourth proportional to 22,278.89, 30,741.94 and 13,323.12 is: 18,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.89 : 30,741.94 = 13,323.12 : x
  2. Step 2: Convert to fraction form
    22,278.89/30,741.94 = 13,323.12/x
  3. Step 3: Cross multiply
    22,278.89x = 30,741.94 × 13,323.12
  4. Step 4: Simplify right side
    22,278.89x = 409,578,555.65
  5. Step 5: Solve for x
    x = 409,578,555.65/22,278.89
  6. Step 6: Final answer
    x = 18,384.15

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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.