Home / 28,762.44-43,142.70-9,040.56

Finding the Fourth Proportional to 28,762.44, 43,142.70 and 9,040.56

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Solution

The fourth proportional to 28,762.44, 43,142.70 and 9,040.56 is: 13,560.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.44 : 43,142.70 = 9,040.56 : x
  2. Step 2: Convert to fraction form
    28,762.44/43,142.70 = 9,040.56/x
  3. Step 3: Cross multiply
    28,762.44x = 43,142.70 × 9,040.56
  4. Step 4: Simplify right side
    28,762.44x = 390,034,167.91
  5. Step 5: Solve for x
    x = 390,034,167.91/28,762.44
  6. Step 6: Final answer
    x = 13,560.54

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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.