Home / 20,083.09-27,714.23-11,130.51

Finding the Fourth Proportional to 20,083.09, 27,714.23 and 11,130.51

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Solution

The fourth proportional to 20,083.09, 27,714.23 and 11,130.51 is: 15,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.09 : 27,714.23 = 11,130.51 : x
  2. Step 2: Convert to fraction form
    20,083.09/27,714.23 = 11,130.51/x
  3. Step 3: Cross multiply
    20,083.09x = 27,714.23 × 11,130.51
  4. Step 4: Simplify right side
    20,083.09x = 308,473,541.98
  5. Step 5: Solve for x
    x = 308,473,541.98/20,083.09
  6. Step 6: Final answer
    x = 15,359.87

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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.