Home / 31,974.48-47,962.13-12,254.22

Finding the Fourth Proportional to 31,974.48, 47,962.13 and 12,254.22

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Solution

The fourth proportional to 31,974.48, 47,962.13 and 12,254.22 is: 18,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.48 : 47,962.13 = 12,254.22 : x
  2. Step 2: Convert to fraction form
    31,974.48/47,962.13 = 12,254.22/x
  3. Step 3: Cross multiply
    31,974.48x = 47,962.13 × 12,254.22
  4. Step 4: Simplify right side
    31,974.48x = 587,738,431.42
  5. Step 5: Solve for x
    x = 587,738,431.42/31,974.48
  6. Step 6: Final answer
    x = 18,381.49

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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.