Home / 28,903.40-43,355.10-9,183.95

Finding the Fourth Proportional to 28,903.40, 43,355.10 and 9,183.95

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Solution

The fourth proportional to 28,903.40, 43,355.10 and 9,183.95 is: 13,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.40 : 43,355.10 = 9,183.95 : x
  2. Step 2: Convert to fraction form
    28,903.40/43,355.10 = 9,183.95/x
  3. Step 3: Cross multiply
    28,903.40x = 43,355.10 × 9,183.95
  4. Step 4: Simplify right side
    28,903.40x = 398,171,070.65
  5. Step 5: Solve for x
    x = 398,171,070.65/28,903.40
  6. Step 6: Final answer
    x = 13,775.93

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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.