Home / 19,881.65-27,415.87-14,837.78

Finding the Fourth Proportional to 19,881.65, 27,415.87 and 14,837.78

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Solution

The fourth proportional to 19,881.65, 27,415.87 and 14,837.78 is: 20,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.65 : 27,415.87 = 14,837.78 : x
  2. Step 2: Convert to fraction form
    19,881.65/27,415.87 = 14,837.78/x
  3. Step 3: Cross multiply
    19,881.65x = 27,415.87 × 14,837.78
  4. Step 4: Simplify right side
    19,881.65x = 406,790,679.01
  5. Step 5: Solve for x
    x = 406,790,679.01/19,881.65
  6. Step 6: Final answer
    x = 20,460.61

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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.