Home / 30,211.45-41,698.47-16,787.32

Finding the Fourth Proportional to 30,211.45, 41,698.47 and 16,787.32

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Solution

The fourth proportional to 30,211.45, 41,698.47 and 16,787.32 is: 23,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.45 : 41,698.47 = 16,787.32 : x
  2. Step 2: Convert to fraction form
    30,211.45/41,698.47 = 16,787.32/x
  3. Step 3: Cross multiply
    30,211.45x = 41,698.47 × 16,787.32
  4. Step 4: Simplify right side
    30,211.45x = 700,005,559.40
  5. Step 5: Solve for x
    x = 700,005,559.40/30,211.45
  6. Step 6: Final answer
    x = 23,170.21

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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.