Home / 14,258.84-21,389.34-3,870.44

Finding the Fourth Proportional to 14,258.84, 21,389.34 and 3,870.44

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Solution

The fourth proportional to 14,258.84, 21,389.34 and 3,870.44 is: 5,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.84 : 21,389.34 = 3,870.44 : x
  2. Step 2: Convert to fraction form
    14,258.84/21,389.34 = 3,870.44/x
  3. Step 3: Cross multiply
    14,258.84x = 21,389.34 × 3,870.44
  4. Step 4: Simplify right side
    14,258.84x = 82,786,157.11
  5. Step 5: Solve for x
    x = 82,786,157.11/14,258.84
  6. Step 6: Final answer
    x = 5,805.95

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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.