Home / 19,228.60-28,813.68-14,275

Finding the Fourth Proportional to 19,228.60, 28,813.68 and 14,275

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Solution

The fourth proportional to 19,228.60, 28,813.68 and 14,275 is: 21,390.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.60 : 28,813.68 = 14,275 : x
  2. Step 2: Convert to fraction form
    19,228.60/28,813.68 = 14,275/x
  3. Step 3: Cross multiply
    19,228.60x = 28,813.68 × 14,275
  4. Step 4: Simplify right side
    19,228.60x = 411,315,282
  5. Step 5: Solve for x
    x = 411,315,282/19,228.60
  6. Step 6: Final answer
    x = 21,390.81

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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.