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Finding the Fourth Proportional to 18,826.00, 28,283.12 and 17,762.12

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Solution

The fourth proportional to 18,826.00, 28,283.12 and 17,762.12 is: 26,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.00 : 28,283.12 = 17,762.12 : x
  2. Step 2: Convert to fraction form
    18,826.00/28,283.12 = 17,762.12/x
  3. Step 3: Cross multiply
    18,826.00x = 28,283.12 × 17,762.12
  4. Step 4: Simplify right side
    18,826.00x = 502,368,074.40
  5. Step 5: Solve for x
    x = 502,368,074.40/18,826.00
  6. Step 6: Final answer
    x = 26,684.81

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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.