Home / 27,628.48-38,127.36-15,053.12

Finding the Fourth Proportional to 27,628.48, 38,127.36 and 15,053.12

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Solution

The fourth proportional to 27,628.48, 38,127.36 and 15,053.12 is: 20,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.48 : 38,127.36 = 15,053.12 : x
  2. Step 2: Convert to fraction form
    27,628.48/38,127.36 = 15,053.12/x
  3. Step 3: Cross multiply
    27,628.48x = 38,127.36 × 15,053.12
  4. Step 4: Simplify right side
    27,628.48x = 573,935,725.36
  5. Step 5: Solve for x
    x = 573,935,725.36/27,628.48
  6. Step 6: Final answer
    x = 20,773.34

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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.