Home / 19,631.60-27,101.66-13,291.73

Finding the Fourth Proportional to 19,631.60, 27,101.66 and 13,291.73

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Solution

The fourth proportional to 19,631.60, 27,101.66 and 13,291.73 is: 18,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.60 : 27,101.66 = 13,291.73 : x
  2. Step 2: Convert to fraction form
    19,631.60/27,101.66 = 13,291.73/x
  3. Step 3: Cross multiply
    19,631.60x = 27,101.66 × 13,291.73
  4. Step 4: Simplify right side
    19,631.60x = 360,227,846.94
  5. Step 5: Solve for x
    x = 360,227,846.94/19,631.60
  6. Step 6: Final answer
    x = 18,349.39

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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.