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Finding the Fourth Proportional to 15,868.20, 22,246.20 and 15,868.20

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Solution

The fourth proportional to 15,868.20, 22,246.20 and 15,868.20 is: 22,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.20 : 22,246.20 = 15,868.20 : x
  2. Step 2: Convert to fraction form
    15,868.20/22,246.20 = 15,868.20/x
  3. Step 3: Cross multiply
    15,868.20x = 22,246.20 × 15,868.20
  4. Step 4: Simplify right side
    15,868.20x = 353,007,150.84
  5. Step 5: Solve for x
    x = 353,007,150.84/15,868.20
  6. Step 6: Final answer
    x = 22,246.20

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.