Home / 27,936.63-38,548.31-15,836.45

Finding the Fourth Proportional to 27,936.63, 38,548.31 and 15,836.45

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Solution

The fourth proportional to 27,936.63, 38,548.31 and 15,836.45 is: 21,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936.63 : 38,548.31 = 15,836.45 : x
  2. Step 2: Convert to fraction form
    27,936.63/38,548.31 = 15,836.45/x
  3. Step 3: Cross multiply
    27,936.63x = 38,548.31 × 15,836.45
  4. Step 4: Simplify right side
    27,936.63x = 610,468,111.98
  5. Step 5: Solve for x
    x = 610,468,111.98/27,936.63
  6. Step 6: Final answer
    x = 21,851.89

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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.