Home / 28,544.30-39,391.19-15,798.35

Finding the Fourth Proportional to 28,544.30, 39,391.19 and 15,798.35

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Solution

The fourth proportional to 28,544.30, 39,391.19 and 15,798.35 is: 21,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.30 : 39,391.19 = 15,798.35 : x
  2. Step 2: Convert to fraction form
    28,544.30/39,391.19 = 15,798.35/x
  3. Step 3: Cross multiply
    28,544.30x = 39,391.19 × 15,798.35
  4. Step 4: Simplify right side
    28,544.30x = 622,315,944.51
  5. Step 5: Solve for x
    x = 622,315,944.51/28,544.30
  6. Step 6: Final answer
    x = 21,801.76

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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.