Home / 27,387-37,795.40-15,450.08

Finding the Fourth Proportional to 27,387, 37,795.40 and 15,450.08

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Solution

The fourth proportional to 27,387, 37,795.40 and 15,450.08 is: 21,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,387 : 37,795.40 = 15,450.08 : x
  2. Step 2: Convert to fraction form
    27,387/37,795.40 = 15,450.08/x
  3. Step 3: Cross multiply
    27,387x = 37,795.40 × 15,450.08
  4. Step 4: Simplify right side
    27,387x = 583,941,953.63
  5. Step 5: Solve for x
    x = 583,941,953.63/27,387
  6. Step 6: Final answer
    x = 21,321.87

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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.