Home / 21,477.03-29,636.33-12,043.77

Finding the Fourth Proportional to 21,477.03, 29,636.33 and 12,043.77

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Solution

The fourth proportional to 21,477.03, 29,636.33 and 12,043.77 is: 16,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.03 : 29,636.33 = 12,043.77 : x
  2. Step 2: Convert to fraction form
    21,477.03/29,636.33 = 12,043.77/x
  3. Step 3: Cross multiply
    21,477.03x = 29,636.33 × 12,043.77
  4. Step 4: Simplify right side
    21,477.03x = 356,933,081.95
  5. Step 5: Solve for x
    x = 356,933,081.95/21,477.03
  6. Step 6: Final answer
    x = 16,619.29

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1.5x scale

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.