Home / 21,235.49-29,302.42-11,673.80

Finding the Fourth Proportional to 21,235.49, 29,302.42 and 11,673.80

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Solution

The fourth proportional to 21,235.49, 29,302.42 and 11,673.80 is: 16,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.49 : 29,302.42 = 11,673.80 : x
  2. Step 2: Convert to fraction form
    21,235.49/29,302.42 = 11,673.80/x
  3. Step 3: Cross multiply
    21,235.49x = 29,302.42 × 11,673.80
  4. Step 4: Simplify right side
    21,235.49x = 342,070,590.60
  5. Step 5: Solve for x
    x = 342,070,590.60/21,235.49
  6. Step 6: Final answer
    x = 16,108.44

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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.