Home / 28,450.54-39,258.75-15,703.48

Finding the Fourth Proportional to 28,450.54, 39,258.75 and 15,703.48

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Solution

The fourth proportional to 28,450.54, 39,258.75 and 15,703.48 is: 21,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.54 : 39,258.75 = 15,703.48 : x
  2. Step 2: Convert to fraction form
    28,450.54/39,258.75 = 15,703.48/x
  3. Step 3: Cross multiply
    28,450.54x = 39,258.75 × 15,703.48
  4. Step 4: Simplify right side
    28,450.54x = 616,498,995.45
  5. Step 5: Solve for x
    x = 616,498,995.45/28,450.54
  6. Step 6: Final answer
    x = 21,669.15

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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.