Home / 27,955.50-38,578.59-15,379.98

Finding the Fourth Proportional to 27,955.50, 38,578.59 and 15,379.98

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Solution

The fourth proportional to 27,955.50, 38,578.59 and 15,379.98 is: 21,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.50 : 38,578.59 = 15,379.98 : x
  2. Step 2: Convert to fraction form
    27,955.50/38,578.59 = 15,379.98/x
  3. Step 3: Cross multiply
    27,955.50x = 38,578.59 × 15,379.98
  4. Step 4: Simplify right side
    27,955.50x = 593,337,942.63
  5. Step 5: Solve for x
    x = 593,337,942.63/27,955.50
  6. Step 6: Final answer
    x = 21,224.37

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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.