Home / 15,521.60-23,286-4,428.44

Finding the Fourth Proportional to 15,521.60, 23,286 and 4,428.44

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Solution

The fourth proportional to 15,521.60, 23,286 and 4,428.44 is: 6,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.60 : 23,286 = 4,428.44 : x
  2. Step 2: Convert to fraction form
    15,521.60/23,286 = 4,428.44/x
  3. Step 3: Cross multiply
    15,521.60x = 23,286 × 4,428.44
  4. Step 4: Simplify right side
    15,521.60x = 103,120,653.84
  5. Step 5: Solve for x
    x = 103,120,653.84/15,521.60
  6. Step 6: Final answer
    x = 6,643.69

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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.