Home / 43,728.06-65,592.12-18,751.98

Finding the Fourth Proportional to 43,728.06, 65,592.12 and 18,751.98

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Solution

The fourth proportional to 43,728.06, 65,592.12 and 18,751.98 is: 28,127.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,728.06 : 65,592.12 = 18,751.98 : x
  2. Step 2: Convert to fraction form
    43,728.06/65,592.12 = 18,751.98/x
  3. Step 3: Cross multiply
    43,728.06x = 65,592.12 × 18,751.98
  4. Step 4: Simplify right side
    43,728.06x = 1,229,982,122.40
  5. Step 5: Solve for x
    x = 1,229,982,122.40/43,728.06
  6. Step 6: Final answer
    x = 28,127.98

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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.