Home / 30,768.21-46,151.64-8,580.99

Finding the Fourth Proportional to 30,768.21, 46,151.64 and 8,580.99

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Solution

The fourth proportional to 30,768.21, 46,151.64 and 8,580.99 is: 12,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,768.21 : 46,151.64 = 8,580.99 : x
  2. Step 2: Convert to fraction form
    30,768.21/46,151.64 = 8,580.99/x
  3. Step 3: Cross multiply
    30,768.21x = 46,151.64 × 8,580.99
  4. Step 4: Simplify right side
    30,768.21x = 396,026,761.32
  5. Step 5: Solve for x
    x = 396,026,761.32/30,768.21
  6. Step 6: Final answer
    x = 12,871.30

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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.