Home / 22,518.70-31,076.88-13,568.98

Finding the Fourth Proportional to 22,518.70, 31,076.88 and 13,568.98

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Solution

The fourth proportional to 22,518.70, 31,076.88 and 13,568.98 is: 18,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,518.70 : 31,076.88 = 13,568.98 : x
  2. Step 2: Convert to fraction form
    22,518.70/31,076.88 = 13,568.98/x
  3. Step 3: Cross multiply
    22,518.70x = 31,076.88 × 13,568.98
  4. Step 4: Simplify right side
    22,518.70x = 421,681,563.18
  5. Step 5: Solve for x
    x = 421,681,563.18/22,518.70
  6. Step 6: Final answer
    x = 18,725.84

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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.