Home / 19,425.42-29,139.93-8,329.62

Finding the Fourth Proportional to 19,425.42, 29,139.93 and 8,329.62

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Solution

The fourth proportional to 19,425.42, 29,139.93 and 8,329.62 is: 12,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.42 : 29,139.93 = 8,329.62 : x
  2. Step 2: Convert to fraction form
    19,425.42/29,139.93 = 8,329.62/x
  3. Step 3: Cross multiply
    19,425.42x = 29,139.93 × 8,329.62
  4. Step 4: Simplify right side
    19,425.42x = 242,724,543.73
  5. Step 5: Solve for x
    x = 242,724,543.73/19,425.42
  6. Step 6: Final answer
    x = 12,495.20

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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.