Home / 19,425.84-29,113.20-14,106.72

Finding the Fourth Proportional to 19,425.84, 29,113.20 and 14,106.72

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Solution

The fourth proportional to 19,425.84, 29,113.20 and 14,106.72 is: 21,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.84 : 29,113.20 = 14,106.72 : x
  2. Step 2: Convert to fraction form
    19,425.84/29,113.20 = 14,106.72/x
  3. Step 3: Cross multiply
    19,425.84x = 29,113.20 × 14,106.72
  4. Step 4: Simplify right side
    19,425.84x = 410,691,760.70
  5. Step 5: Solve for x
    x = 410,691,760.70/19,425.84
  6. Step 6: Final answer
    x = 21,141.52

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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.