Home / 27,336.80-37,724.61-15,403.98

Finding the Fourth Proportional to 27,336.80, 37,724.61 and 15,403.98

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Solution

The fourth proportional to 27,336.80, 37,724.61 and 15,403.98 is: 21,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,336.80 : 37,724.61 = 15,403.98 : x
  2. Step 2: Convert to fraction form
    27,336.80/37,724.61 = 15,403.98/x
  3. Step 3: Cross multiply
    27,336.80x = 37,724.61 × 15,403.98
  4. Step 4: Simplify right side
    27,336.80x = 581,109,137.95
  5. Step 5: Solve for x
    x = 581,109,137.95/27,336.80
  6. Step 6: Final answer
    x = 21,257.39

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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.