Home / 21,329.27-29,435.02-11,897.63

Finding the Fourth Proportional to 21,329.27, 29,435.02 and 11,897.63

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Solution

The fourth proportional to 21,329.27, 29,435.02 and 11,897.63 is: 16,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.27 : 29,435.02 = 11,897.63 : x
  2. Step 2: Convert to fraction form
    21,329.27/29,435.02 = 11,897.63/x
  3. Step 3: Cross multiply
    21,329.27x = 29,435.02 × 11,897.63
  4. Step 4: Simplify right side
    21,329.27x = 350,206,977.00
  5. Step 5: Solve for x
    x = 350,206,977.00/21,329.27
  6. Step 6: Final answer
    x = 16,419.08

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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.