Home / 19,929.30-29,880.12-8,829.93

Finding the Fourth Proportional to 19,929.30, 29,880.12 and 8,829.93

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Solution

The fourth proportional to 19,929.30, 29,880.12 and 8,829.93 is: 13,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.30 : 29,880.12 = 8,829.93 : x
  2. Step 2: Convert to fraction form
    19,929.30/29,880.12 = 8,829.93/x
  3. Step 3: Cross multiply
    19,929.30x = 29,880.12 × 8,829.93
  4. Step 4: Simplify right side
    19,929.30x = 263,839,367.99
  5. Step 5: Solve for x
    x = 263,839,367.99/19,929.30
  6. Step 6: Final answer
    x = 13,238.77

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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.