Home / 14,578.45-20,069.62-13,908.93

Finding the Fourth Proportional to 14,578.45, 20,069.62 and 13,908.93

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Solution

The fourth proportional to 14,578.45, 20,069.62 and 13,908.93 is: 19,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.45 : 20,069.62 = 13,908.93 : x
  2. Step 2: Convert to fraction form
    14,578.45/20,069.62 = 13,908.93/x
  3. Step 3: Cross multiply
    14,578.45x = 20,069.62 × 13,908.93
  4. Step 4: Simplify right side
    14,578.45x = 279,147,020.80
  5. Step 5: Solve for x
    x = 279,147,020.80/14,578.45
  6. Step 6: Final answer
    x = 19,147.93

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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.