Home / 28,648.25-42,989.66-12,232.25

Finding the Fourth Proportional to 28,648.25, 42,989.66 and 12,232.25

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Solution

The fourth proportional to 28,648.25, 42,989.66 and 12,232.25 is: 18,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.25 : 42,989.66 = 12,232.25 : x
  2. Step 2: Convert to fraction form
    28,648.25/42,989.66 = 12,232.25/x
  3. Step 3: Cross multiply
    28,648.25x = 42,989.66 × 12,232.25
  4. Step 4: Simplify right side
    28,648.25x = 525,860,207.37
  5. Step 5: Solve for x
    x = 525,860,207.37/28,648.25
  6. Step 6: Final answer
    x = 18,355.75

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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.