Home / 27,511.41-37,880.74-21,485.99

Finding the Fourth Proportional to 27,511.41, 37,880.74 and 21,485.99

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Solution

The fourth proportional to 27,511.41, 37,880.74 and 21,485.99 is: 29,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,511.41 : 37,880.74 = 21,485.99 : x
  2. Step 2: Convert to fraction form
    27,511.41/37,880.74 = 21,485.99/x
  3. Step 3: Cross multiply
    27,511.41x = 37,880.74 × 21,485.99
  4. Step 4: Simplify right side
    27,511.41x = 813,905,352.90
  5. Step 5: Solve for x
    x = 813,905,352.90/27,511.41
  6. Step 6: Final answer
    x = 29,584.28

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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.