Home / 21,312.13-29,410.94-11,752.35

Finding the Fourth Proportional to 21,312.13, 29,410.94 and 11,752.35

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Solution

The fourth proportional to 21,312.13, 29,410.94 and 11,752.35 is: 16,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312.13 : 29,410.94 = 11,752.35 : x
  2. Step 2: Convert to fraction form
    21,312.13/29,410.94 = 11,752.35/x
  3. Step 3: Cross multiply
    21,312.13x = 29,410.94 × 11,752.35
  4. Step 4: Simplify right side
    21,312.13x = 345,647,703.96
  5. Step 5: Solve for x
    x = 345,647,703.96/21,312.13
  6. Step 6: Final answer
    x = 16,218.36

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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.