Home / 27,014.90-40,503.90-12,215.75

Finding the Fourth Proportional to 27,014.90, 40,503.90 and 12,215.75

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Solution

The fourth proportional to 27,014.90, 40,503.90 and 12,215.75 is: 18,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,014.90 : 40,503.90 = 12,215.75 : x
  2. Step 2: Convert to fraction form
    27,014.90/40,503.90 = 12,215.75/x
  3. Step 3: Cross multiply
    27,014.90x = 40,503.90 × 12,215.75
  4. Step 4: Simplify right side
    27,014.90x = 494,785,516.43
  5. Step 5: Solve for x
    x = 494,785,516.43/27,014.90
  6. Step 6: Final answer
    x = 18,315.28

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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.