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Finding the Fourth Proportional to 18,810.23, 28,220.23 and 5,482.92

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Solution

The fourth proportional to 18,810.23, 28,220.23 and 5,482.92 is: 8,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.23 : 28,220.23 = 5,482.92 : x
  2. Step 2: Convert to fraction form
    18,810.23/28,220.23 = 5,482.92/x
  3. Step 3: Cross multiply
    18,810.23x = 28,220.23 × 5,482.92
  4. Step 4: Simplify right side
    18,810.23x = 154,729,270.33
  5. Step 5: Solve for x
    x = 154,729,270.33/18,810.23
  6. Step 6: Final answer
    x = 8,225.81

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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.