Home / 19,917.40-27,494.52-14,178.56

Finding the Fourth Proportional to 19,917.40, 27,494.52 and 14,178.56

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Solution

The fourth proportional to 19,917.40, 27,494.52 and 14,178.56 is: 19,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.40 : 27,494.52 = 14,178.56 : x
  2. Step 2: Convert to fraction form
    19,917.40/27,494.52 = 14,178.56/x
  3. Step 3: Cross multiply
    19,917.40x = 27,494.52 × 14,178.56
  4. Step 4: Simplify right side
    19,917.40x = 389,832,701.49
  5. Step 5: Solve for x
    x = 389,832,701.49/19,917.40
  6. Step 6: Final answer
    x = 19,572.47

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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.