Home / 21,135.03-29,166.36-11,703.39

Finding the Fourth Proportional to 21,135.03, 29,166.36 and 11,703.39

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Solution

The fourth proportional to 21,135.03, 29,166.36 and 11,703.39 is: 16,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135.03 : 29,166.36 = 11,703.39 : x
  2. Step 2: Convert to fraction form
    21,135.03/29,166.36 = 11,703.39/x
  3. Step 3: Cross multiply
    21,135.03x = 29,166.36 × 11,703.39
  4. Step 4: Simplify right side
    21,135.03x = 341,345,285.96
  5. Step 5: Solve for x
    x = 341,345,285.96/21,135.03
  6. Step 6: Final answer
    x = 16,150.69

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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.