Home / 19,941.56-27,518.10-11,979.08

Finding the Fourth Proportional to 19,941.56, 27,518.10 and 11,979.08

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Solution

The fourth proportional to 19,941.56, 27,518.10 and 11,979.08 is: 16,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.56 : 27,518.10 = 11,979.08 : x
  2. Step 2: Convert to fraction form
    19,941.56/27,518.10 = 11,979.08/x
  3. Step 3: Cross multiply
    19,941.56x = 27,518.10 × 11,979.08
  4. Step 4: Simplify right side
    19,941.56x = 329,641,521.35
  5. Step 5: Solve for x
    x = 329,641,521.35/19,941.56
  6. Step 6: Final answer
    x = 16,530.38

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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.