Home / 23,137.84-31,929.94-13,706.56

Finding the Fourth Proportional to 23,137.84, 31,929.94 and 13,706.56

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Solution

The fourth proportional to 23,137.84, 31,929.94 and 13,706.56 is: 18,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.84 : 31,929.94 = 13,706.56 : x
  2. Step 2: Convert to fraction form
    23,137.84/31,929.94 = 13,706.56/x
  3. Step 3: Cross multiply
    23,137.84x = 31,929.94 × 13,706.56
  4. Step 4: Simplify right side
    23,137.84x = 437,649,638.41
  5. Step 5: Solve for x
    x = 437,649,638.41/23,137.84
  6. Step 6: Final answer
    x = 18,914.89

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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.