Home / 19,965.93-27,561.83-12,895.80

Finding the Fourth Proportional to 19,965.93, 27,561.83 and 12,895.80

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Solution

The fourth proportional to 19,965.93, 27,561.83 and 12,895.80 is: 17,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.93 : 27,561.83 = 12,895.80 : x
  2. Step 2: Convert to fraction form
    19,965.93/27,561.83 = 12,895.80/x
  3. Step 3: Cross multiply
    19,965.93x = 27,561.83 × 12,895.80
  4. Step 4: Simplify right side
    19,965.93x = 355,431,847.31
  5. Step 5: Solve for x
    x = 355,431,847.31/19,965.93
  6. Step 6: Final answer
    x = 17,801.92

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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.