Home / 21,338.36-29,444.01-11,905.10

Finding the Fourth Proportional to 21,338.36, 29,444.01 and 11,905.10

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Solution

The fourth proportional to 21,338.36, 29,444.01 and 11,905.10 is: 16,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.36 : 29,444.01 = 11,905.10 : x
  2. Step 2: Convert to fraction form
    21,338.36/29,444.01 = 11,905.10/x
  3. Step 3: Cross multiply
    21,338.36x = 29,444.01 × 11,905.10
  4. Step 4: Simplify right side
    21,338.36x = 350,533,883.45
  5. Step 5: Solve for x
    x = 350,533,883.45/21,338.36
  6. Step 6: Final answer
    x = 16,427.41

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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.