Home / 30,775.12-42,469.68-16,627.96

Finding the Fourth Proportional to 30,775.12, 42,469.68 and 16,627.96

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Solution

The fourth proportional to 30,775.12, 42,469.68 and 16,627.96 is: 22,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.12 : 42,469.68 = 16,627.96 : x
  2. Step 2: Convert to fraction form
    30,775.12/42,469.68 = 16,627.96/x
  3. Step 3: Cross multiply
    30,775.12x = 42,469.68 × 16,627.96
  4. Step 4: Simplify right side
    30,775.12x = 706,184,140.25
  5. Step 5: Solve for x
    x = 706,184,140.25/30,775.12
  6. Step 6: Final answer
    x = 22,946.59

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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.