Home / 27,840.38-38,418.92-15,903.48

Finding the Fourth Proportional to 27,840.38, 38,418.92 and 15,903.48

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Solution

The fourth proportional to 27,840.38, 38,418.92 and 15,903.48 is: 21,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.38 : 38,418.92 = 15,903.48 : x
  2. Step 2: Convert to fraction form
    27,840.38/38,418.92 = 15,903.48/x
  3. Step 3: Cross multiply
    27,840.38x = 38,418.92 × 15,903.48
  4. Step 4: Simplify right side
    27,840.38x = 610,994,525.84
  5. Step 5: Solve for x
    x = 610,994,525.84/27,840.38
  6. Step 6: Final answer
    x = 21,946.34

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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.