Home / 28,122.98-42,170.54-9,396.58

Finding the Fourth Proportional to 28,122.98, 42,170.54 and 9,396.58

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Solution

The fourth proportional to 28,122.98, 42,170.54 and 9,396.58 is: 14,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.98 : 42,170.54 = 9,396.58 : x
  2. Step 2: Convert to fraction form
    28,122.98/42,170.54 = 9,396.58/x
  3. Step 3: Cross multiply
    28,122.98x = 42,170.54 × 9,396.58
  4. Step 4: Simplify right side
    28,122.98x = 396,258,852.75
  5. Step 5: Solve for x
    x = 396,258,852.75/28,122.98
  6. Step 6: Final answer
    x = 14,090.22

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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.