Home / 19,780.48-27,296.24-10,827.76

Finding the Fourth Proportional to 19,780.48, 27,296.24 and 10,827.76

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Solution

The fourth proportional to 19,780.48, 27,296.24 and 10,827.76 is: 14,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.48 : 27,296.24 = 10,827.76 : x
  2. Step 2: Convert to fraction form
    19,780.48/27,296.24 = 10,827.76/x
  3. Step 3: Cross multiply
    19,780.48x = 27,296.24 × 10,827.76
  4. Step 4: Simplify right side
    19,780.48x = 295,557,135.62
  5. Step 5: Solve for x
    x = 295,557,135.62/19,780.48
  6. Step 6: Final answer
    x = 14,941.86

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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.