Home / 27,144.50-40,722.60-8,424.18

Finding the Fourth Proportional to 27,144.50, 40,722.60 and 8,424.18

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Solution

The fourth proportional to 27,144.50, 40,722.60 and 8,424.18 is: 12,638.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,144.50 : 40,722.60 = 8,424.18 : x
  2. Step 2: Convert to fraction form
    27,144.50/40,722.60 = 8,424.18/x
  3. Step 3: Cross multiply
    27,144.50x = 40,722.60 × 8,424.18
  4. Step 4: Simplify right side
    27,144.50x = 343,054,512.47
  5. Step 5: Solve for x
    x = 343,054,512.47/27,144.50
  6. Step 6: Final answer
    x = 12,638.09

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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.