Home / 21,467.85-29,626.40-12,513.91

Finding the Fourth Proportional to 21,467.85, 29,626.40 and 12,513.91

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Solution

The fourth proportional to 21,467.85, 29,626.40 and 12,513.91 is: 17,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.85 : 29,626.40 = 12,513.91 : x
  2. Step 2: Convert to fraction form
    21,467.85/29,626.40 = 12,513.91/x
  3. Step 3: Cross multiply
    21,467.85x = 29,626.40 × 12,513.91
  4. Step 4: Simplify right side
    21,467.85x = 370,742,060.44
  5. Step 5: Solve for x
    x = 370,742,060.44/21,467.85
  6. Step 6: Final answer
    x = 17,269.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.