Home / 21,094.21-29,109.27-11,533.78

Finding the Fourth Proportional to 21,094.21, 29,109.27 and 11,533.78

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Solution

The fourth proportional to 21,094.21, 29,109.27 and 11,533.78 is: 15,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.21 : 29,109.27 = 11,533.78 : x
  2. Step 2: Convert to fraction form
    21,094.21/29,109.27 = 11,533.78/x
  3. Step 3: Cross multiply
    21,094.21x = 29,109.27 × 11,533.78
  4. Step 4: Simplify right side
    21,094.21x = 335,739,916.14
  5. Step 5: Solve for x
    x = 335,739,916.14/21,094.21
  6. Step 6: Final answer
    x = 15,916.21

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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.