Home / 21,094.43-31,649.81-19,372.10

Finding the Fourth Proportional to 21,094.43, 31,649.81 and 19,372.10

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Solution

The fourth proportional to 21,094.43, 31,649.81 and 19,372.10 is: 29,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.43 : 31,649.81 = 19,372.10 : x
  2. Step 2: Convert to fraction form
    21,094.43/31,649.81 = 19,372.10/x
  3. Step 3: Cross multiply
    21,094.43x = 31,649.81 × 19,372.10
  4. Step 4: Simplify right side
    21,094.43x = 613,123,029.19
  5. Step 5: Solve for x
    x = 613,123,029.19/21,094.43
  6. Step 6: Final answer
    x = 29,065.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.