Home / 19,230.21-28,838.43-7,384.77

Finding the Fourth Proportional to 19,230.21, 28,838.43 and 7,384.77

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Solution

The fourth proportional to 19,230.21, 28,838.43 and 7,384.77 is: 11,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.21 : 28,838.43 = 7,384.77 : x
  2. Step 2: Convert to fraction form
    19,230.21/28,838.43 = 7,384.77/x
  3. Step 3: Cross multiply
    19,230.21x = 28,838.43 × 7,384.77
  4. Step 4: Simplify right side
    19,230.21x = 212,965,172.71
  5. Step 5: Solve for x
    x = 212,965,172.71/19,230.21
  6. Step 6: Final answer
    x = 11,074.51

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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.