Home / 19,887.31-27,445.19-10,935.49

Finding the Fourth Proportional to 19,887.31, 27,445.19 and 10,935.49

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Solution

The fourth proportional to 19,887.31, 27,445.19 and 10,935.49 is: 15,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.31 : 27,445.19 = 10,935.49 : x
  2. Step 2: Convert to fraction form
    19,887.31/27,445.19 = 10,935.49/x
  3. Step 3: Cross multiply
    19,887.31x = 27,445.19 × 10,935.49
  4. Step 4: Simplify right side
    19,887.31x = 300,126,600.79
  5. Step 5: Solve for x
    x = 300,126,600.79/19,887.31
  6. Step 6: Final answer
    x = 15,091.36

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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.