Home / 28,078.84-42,124.74-14,943.88

Finding the Fourth Proportional to 28,078.84, 42,124.74 and 14,943.88

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Solution

The fourth proportional to 28,078.84, 42,124.74 and 14,943.88 is: 22,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.84 : 42,124.74 = 14,943.88 : x
  2. Step 2: Convert to fraction form
    28,078.84/42,124.74 = 14,943.88/x
  3. Step 3: Cross multiply
    28,078.84x = 42,124.74 × 14,943.88
  4. Step 4: Simplify right side
    28,078.84x = 629,507,059.59
  5. Step 5: Solve for x
    x = 629,507,059.59/28,078.84
  6. Step 6: Final answer
    x = 22,419.27

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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.