Home / 21,331.40-29,437.13-11,771.37

Finding the Fourth Proportional to 21,331.40, 29,437.13 and 11,771.37

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Solution

The fourth proportional to 21,331.40, 29,437.13 and 11,771.37 is: 16,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.40 : 29,437.13 = 11,771.37 : x
  2. Step 2: Convert to fraction form
    21,331.40/29,437.13 = 11,771.37/x
  3. Step 3: Cross multiply
    21,331.40x = 29,437.13 × 11,771.37
  4. Step 4: Simplify right side
    21,331.40x = 346,515,290.11
  5. Step 5: Solve for x
    x = 346,515,290.11/21,331.40
  6. Step 6: Final answer
    x = 16,244.38

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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.