Home / 21,078.07-29,053.96-14,269.95

Finding the Fourth Proportional to 21,078.07, 29,053.96 and 14,269.95

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Solution

The fourth proportional to 21,078.07, 29,053.96 and 14,269.95 is: 19,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,078.07 : 29,053.96 = 14,269.95 : x
  2. Step 2: Convert to fraction form
    21,078.07/29,053.96 = 14,269.95/x
  3. Step 3: Cross multiply
    21,078.07x = 29,053.96 × 14,269.95
  4. Step 4: Simplify right side
    21,078.07x = 414,598,556.50
  5. Step 5: Solve for x
    x = 414,598,556.50/21,078.07
  6. Step 6: Final answer
    x = 19,669.66

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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.