Home / 14,521.21-21,781.98-13,813.00

Finding the Fourth Proportional to 14,521.21, 21,781.98 and 13,813.00

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Solution

The fourth proportional to 14,521.21, 21,781.98 and 13,813.00 is: 20,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.21 : 21,781.98 = 13,813.00 : x
  2. Step 2: Convert to fraction form
    14,521.21/21,781.98 = 13,813.00/x
  3. Step 3: Cross multiply
    14,521.21x = 21,781.98 × 13,813.00
  4. Step 4: Simplify right side
    14,521.21x = 300,874,435.29
  5. Step 5: Solve for x
    x = 300,874,435.29/14,521.21
  6. Step 6: Final answer
    x = 20,719.66

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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.