Home / 19,561.10-27,006.01-12,857.94

Finding the Fourth Proportional to 19,561.10, 27,006.01 and 12,857.94

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Solution

The fourth proportional to 19,561.10, 27,006.01 and 12,857.94 is: 17,751.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.10 : 27,006.01 = 12,857.94 : x
  2. Step 2: Convert to fraction form
    19,561.10/27,006.01 = 12,857.94/x
  3. Step 3: Cross multiply
    19,561.10x = 27,006.01 × 12,857.94
  4. Step 4: Simplify right side
    19,561.10x = 347,241,624.07
  5. Step 5: Solve for x
    x = 347,241,624.07/19,561.10
  6. Step 6: Final answer
    x = 17,751.65

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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.