Home / 27,490.50-37,936.90-15,553.58

Finding the Fourth Proportional to 27,490.50, 37,936.90 and 15,553.58

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Solution

The fourth proportional to 27,490.50, 37,936.90 and 15,553.58 is: 21,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,490.50 : 37,936.90 = 15,553.58 : x
  2. Step 2: Convert to fraction form
    27,490.50/37,936.90 = 15,553.58/x
  3. Step 3: Cross multiply
    27,490.50x = 37,936.90 × 15,553.58
  4. Step 4: Simplify right side
    27,490.50x = 590,054,609.10
  5. Step 5: Solve for x
    x = 590,054,609.10/27,490.50
  6. Step 6: Final answer
    x = 21,463.95

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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.