Home / 28,623.56-42,940.62-8,900.84

Finding the Fourth Proportional to 28,623.56, 42,940.62 and 8,900.84

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Solution

The fourth proportional to 28,623.56, 42,940.62 and 8,900.84 is: 13,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.56 : 42,940.62 = 8,900.84 : x
  2. Step 2: Convert to fraction form
    28,623.56/42,940.62 = 8,900.84/x
  3. Step 3: Cross multiply
    28,623.56x = 42,940.62 × 8,900.84
  4. Step 4: Simplify right side
    28,623.56x = 382,207,588.12
  5. Step 5: Solve for x
    x = 382,207,588.12/28,623.56
  6. Step 6: Final answer
    x = 13,352.90

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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.