Home / 28,512.30-42,768.45-18,014.70

Finding the Fourth Proportional to 28,512.30, 42,768.45 and 18,014.70

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Solution

The fourth proportional to 28,512.30, 42,768.45 and 18,014.70 is: 27,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.30 : 42,768.45 = 18,014.70 : x
  2. Step 2: Convert to fraction form
    28,512.30/42,768.45 = 18,014.70/x
  3. Step 3: Cross multiply
    28,512.30x = 42,768.45 × 18,014.70
  4. Step 4: Simplify right side
    28,512.30x = 770,460,796.22
  5. Step 5: Solve for x
    x = 770,460,796.22/28,512.30
  6. Step 6: Final answer
    x = 27,022.05

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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.