Home / 19,638.66-27,093.78-13,971.63

Finding the Fourth Proportional to 19,638.66, 27,093.78 and 13,971.63

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Solution

The fourth proportional to 19,638.66, 27,093.78 and 13,971.63 is: 19,275.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.66 : 27,093.78 = 13,971.63 : x
  2. Step 2: Convert to fraction form
    19,638.66/27,093.78 = 13,971.63/x
  3. Step 3: Cross multiply
    19,638.66x = 27,093.78 × 13,971.63
  4. Step 4: Simplify right side
    19,638.66x = 378,544,269.46
  5. Step 5: Solve for x
    x = 378,544,269.46/19,638.66
  6. Step 6: Final answer
    x = 19,275.46

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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.