Home / 19,780.17-27,296.69-10,827.74

Finding the Fourth Proportional to 19,780.17, 27,296.69 and 10,827.74

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Solution

The fourth proportional to 19,780.17, 27,296.69 and 10,827.74 is: 14,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.17 : 27,296.69 = 10,827.74 : x
  2. Step 2: Convert to fraction form
    19,780.17/27,296.69 = 10,827.74/x
  3. Step 3: Cross multiply
    19,780.17x = 27,296.69 × 10,827.74
  4. Step 4: Simplify right side
    19,780.17x = 295,561,271.56
  5. Step 5: Solve for x
    x = 295,561,271.56/19,780.17
  6. Step 6: Final answer
    x = 14,942.30

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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.