Home / 28,058.94-38,721.31-15,483.69

Finding the Fourth Proportional to 28,058.94, 38,721.31 and 15,483.69

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Solution

The fourth proportional to 28,058.94, 38,721.31 and 15,483.69 is: 21,367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.94 : 38,721.31 = 15,483.69 : x
  2. Step 2: Convert to fraction form
    28,058.94/38,721.31 = 15,483.69/x
  3. Step 3: Cross multiply
    28,058.94x = 38,721.31 × 15,483.69
  4. Step 4: Simplify right side
    28,058.94x = 599,548,721.72
  5. Step 5: Solve for x
    x = 599,548,721.72/28,058.94
  6. Step 6: Final answer
    x = 21,367.48

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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.