Home / 19,730.13-27,228.39-11,346.63

Finding the Fourth Proportional to 19,730.13, 27,228.39 and 11,346.63

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Solution

The fourth proportional to 19,730.13, 27,228.39 and 11,346.63 is: 15,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.13 : 27,228.39 = 11,346.63 : x
  2. Step 2: Convert to fraction form
    19,730.13/27,228.39 = 11,346.63/x
  3. Step 3: Cross multiply
    19,730.13x = 27,228.39 × 11,346.63
  4. Step 4: Simplify right side
    19,730.13x = 308,950,273.95
  5. Step 5: Solve for x
    x = 308,950,273.95/19,730.13
  6. Step 6: Final answer
    x = 15,658.81

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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.