Home / 30,746.39-46,015.34-18,907.60

Finding the Fourth Proportional to 30,746.39, 46,015.34 and 18,907.60

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Solution

The fourth proportional to 30,746.39, 46,015.34 and 18,907.60 is: 28,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.39 : 46,015.34 = 18,907.60 : x
  2. Step 2: Convert to fraction form
    30,746.39/46,015.34 = 18,907.60/x
  3. Step 3: Cross multiply
    30,746.39x = 46,015.34 × 18,907.60
  4. Step 4: Simplify right side
    30,746.39x = 870,039,642.58
  5. Step 5: Solve for x
    x = 870,039,642.58/30,746.39
  6. Step 6: Final answer
    x = 28,297.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.