Home / 38,411.36-53,007.36-21,415.44

Finding the Fourth Proportional to 38,411.36, 53,007.36 and 21,415.44

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Solution

The fourth proportional to 38,411.36, 53,007.36 and 21,415.44 is: 29,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,411.36 : 53,007.36 = 21,415.44 : x
  2. Step 2: Convert to fraction form
    38,411.36/53,007.36 = 21,415.44/x
  3. Step 3: Cross multiply
    38,411.36x = 53,007.36 × 21,415.44
  4. Step 4: Simplify right side
    38,411.36x = 1,135,175,937.64
  5. Step 5: Solve for x
    x = 1,135,175,937.64/38,411.36
  6. Step 6: Final answer
    x = 29,553.13

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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.