Home / 28,258.48-38,995.32-16,928.44

Finding the Fourth Proportional to 28,258.48, 38,995.32 and 16,928.44

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Solution

The fourth proportional to 28,258.48, 38,995.32 and 16,928.44 is: 23,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.48 : 38,995.32 = 16,928.44 : x
  2. Step 2: Convert to fraction form
    28,258.48/38,995.32 = 16,928.44/x
  3. Step 3: Cross multiply
    28,258.48x = 38,995.32 × 16,928.44
  4. Step 4: Simplify right side
    28,258.48x = 660,129,934.90
  5. Step 5: Solve for x
    x = 660,129,934.90/28,258.48
  6. Step 6: Final answer
    x = 23,360.42

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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.