Home / 30,977.22-42,749.44-16,830.92

Finding the Fourth Proportional to 30,977.22, 42,749.44 and 16,830.92

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Solution

The fourth proportional to 30,977.22, 42,749.44 and 16,830.92 is: 23,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,977.22 : 42,749.44 = 16,830.92 : x
  2. Step 2: Convert to fraction form
    30,977.22/42,749.44 = 16,830.92/x
  3. Step 3: Cross multiply
    30,977.22x = 42,749.44 × 16,830.92
  4. Step 4: Simplify right side
    30,977.22x = 719,512,404.68
  5. Step 5: Solve for x
    x = 719,512,404.68/30,977.22
  6. Step 6: Final answer
    x = 23,227.15

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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.