Home / 28,065.70-42,104.40-9,351.55

Finding the Fourth Proportional to 28,065.70, 42,104.40 and 9,351.55

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Solution

The fourth proportional to 28,065.70, 42,104.40 and 9,351.55 is: 14,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.70 : 42,104.40 = 9,351.55 : x
  2. Step 2: Convert to fraction form
    28,065.70/42,104.40 = 9,351.55/x
  3. Step 3: Cross multiply
    28,065.70x = 42,104.40 × 9,351.55
  4. Step 4: Simplify right side
    28,065.70x = 393,741,401.82
  5. Step 5: Solve for x
    x = 393,741,401.82/28,065.70
  6. Step 6: Final answer
    x = 14,029.27

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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.