Home / 19,887.85-27,443.91-10,935.73

Finding the Fourth Proportional to 19,887.85, 27,443.91 and 10,935.73

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Solution

The fourth proportional to 19,887.85, 27,443.91 and 10,935.73 is: 15,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.85 : 27,443.91 = 10,935.73 : x
  2. Step 2: Convert to fraction form
    19,887.85/27,443.91 = 10,935.73/x
  3. Step 3: Cross multiply
    19,887.85x = 27,443.91 × 10,935.73
  4. Step 4: Simplify right side
    19,887.85x = 300,119,189.90
  5. Step 5: Solve for x
    x = 300,119,189.90/19,887.85
  6. Step 6: Final answer
    x = 15,090.58

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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.