Home / 27,431.06-41,113.50-12,619.66

Finding the Fourth Proportional to 27,431.06, 41,113.50 and 12,619.66

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Solution

The fourth proportional to 27,431.06, 41,113.50 and 12,619.66 is: 18,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.06 : 41,113.50 = 12,619.66 : x
  2. Step 2: Convert to fraction form
    27,431.06/41,113.50 = 12,619.66/x
  3. Step 3: Cross multiply
    27,431.06x = 41,113.50 × 12,619.66
  4. Step 4: Simplify right side
    27,431.06x = 518,838,391.41
  5. Step 5: Solve for x
    x = 518,838,391.41/27,431.06
  6. Step 6: Final answer
    x = 18,914.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.