Home / 19,415.28-29,105.64-9,021.36

Finding the Fourth Proportional to 19,415.28, 29,105.64 and 9,021.36

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Solution

The fourth proportional to 19,415.28, 29,105.64 and 9,021.36 is: 13,524.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.28 : 29,105.64 = 9,021.36 : x
  2. Step 2: Convert to fraction form
    19,415.28/29,105.64 = 9,021.36/x
  3. Step 3: Cross multiply
    19,415.28x = 29,105.64 × 9,021.36
  4. Step 4: Simplify right side
    19,415.28x = 262,572,456.47
  5. Step 5: Solve for x
    x = 262,572,456.47/19,415.28
  6. Step 6: Final answer
    x = 13,524.01

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1.5x scale

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.