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Finding the Fourth Proportional to 19,281.59, 28,842.41 and 18,100.61

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Solution

The fourth proportional to 19,281.59, 28,842.41 and 18,100.61 is: 27,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.59 : 28,842.41 = 18,100.61 : x
  2. Step 2: Convert to fraction form
    19,281.59/28,842.41 = 18,100.61/x
  3. Step 3: Cross multiply
    19,281.59x = 28,842.41 × 18,100.61
  4. Step 4: Simplify right side
    19,281.59x = 522,065,214.87
  5. Step 5: Solve for x
    x = 522,065,214.87/19,281.59
  6. Step 6: Final answer
    x = 27,075.84

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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.