Home / 19,769.55-27,284.49-12,969.32

Finding the Fourth Proportional to 19,769.55, 27,284.49 and 12,969.32

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Solution

The fourth proportional to 19,769.55, 27,284.49 and 12,969.32 is: 17,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.55 : 27,284.49 = 12,969.32 : x
  2. Step 2: Convert to fraction form
    19,769.55/27,284.49 = 12,969.32/x
  3. Step 3: Cross multiply
    19,769.55x = 27,284.49 × 12,969.32
  4. Step 4: Simplify right side
    19,769.55x = 353,861,145.42
  5. Step 5: Solve for x
    x = 353,861,145.42/19,769.55
  6. Step 6: Final answer
    x = 17,899.30

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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.