Home / 19,730.56-27,228.36-11,776.36

Finding the Fourth Proportional to 19,730.56, 27,228.36 and 11,776.36

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Solution

The fourth proportional to 19,730.56, 27,228.36 and 11,776.36 is: 16,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.56 : 27,228.36 = 11,776.36 : x
  2. Step 2: Convert to fraction form
    19,730.56/27,228.36 = 11,776.36/x
  3. Step 3: Cross multiply
    19,730.56x = 27,228.36 × 11,776.36
  4. Step 4: Simplify right side
    19,730.56x = 320,650,969.57
  5. Step 5: Solve for x
    x = 320,650,969.57/19,730.56
  6. Step 6: Final answer
    x = 16,251.49

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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.