Home / 30,339.81-41,870.38-16,911.16

Finding the Fourth Proportional to 30,339.81, 41,870.38 and 16,911.16

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Solution

The fourth proportional to 30,339.81, 41,870.38 and 16,911.16 is: 23,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.81 : 41,870.38 = 16,911.16 : x
  2. Step 2: Convert to fraction form
    30,339.81/41,870.38 = 16,911.16/x
  3. Step 3: Cross multiply
    30,339.81x = 41,870.38 × 16,911.16
  4. Step 4: Simplify right side
    30,339.81x = 708,076,695.44
  5. Step 5: Solve for x
    x = 708,076,695.44/30,339.81
  6. Step 6: Final answer
    x = 23,338.20

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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.