Home / 28,171.84-38,872.36-16,845.88

Finding the Fourth Proportional to 28,171.84, 38,872.36 and 16,845.88

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Solution

The fourth proportional to 28,171.84, 38,872.36 and 16,845.88 is: 23,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.84 : 38,872.36 = 16,845.88 : x
  2. Step 2: Convert to fraction form
    28,171.84/38,872.36 = 16,845.88/x
  3. Step 3: Cross multiply
    28,171.84x = 38,872.36 × 16,845.88
  4. Step 4: Simplify right side
    28,171.84x = 654,839,111.88
  5. Step 5: Solve for x
    x = 654,839,111.88/28,171.84
  6. Step 6: Final answer
    x = 23,244.46

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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.