Home / 21,083.54-29,090.98-12,582.94

Finding the Fourth Proportional to 21,083.54, 29,090.98 and 12,582.94

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Solution

The fourth proportional to 21,083.54, 29,090.98 and 12,582.94 is: 17,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.54 : 29,090.98 = 12,582.94 : x
  2. Step 2: Convert to fraction form
    21,083.54/29,090.98 = 12,582.94/x
  3. Step 3: Cross multiply
    21,083.54x = 29,090.98 × 12,582.94
  4. Step 4: Simplify right side
    21,083.54x = 366,050,055.88
  5. Step 5: Solve for x
    x = 366,050,055.88/21,083.54
  6. Step 6: Final answer
    x = 17,361.89

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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.