Home / 28,042.86-38,698.47-15,467.34

Finding the Fourth Proportional to 28,042.86, 38,698.47 and 15,467.34

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Solution

The fourth proportional to 28,042.86, 38,698.47 and 15,467.34 is: 21,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.86 : 38,698.47 = 15,467.34 : x
  2. Step 2: Convert to fraction form
    28,042.86/38,698.47 = 15,467.34/x
  3. Step 3: Cross multiply
    28,042.86x = 38,698.47 × 15,467.34
  4. Step 4: Simplify right side
    28,042.86x = 598,562,392.97
  5. Step 5: Solve for x
    x = 598,562,392.97/28,042.86
  6. Step 6: Final answer
    x = 21,344.56

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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.