Home / 30,775.10-42,469.65-16,627.95

Finding the Fourth Proportional to 30,775.10, 42,469.65 and 16,627.95

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Solution

The fourth proportional to 30,775.10, 42,469.65 and 16,627.95 is: 22,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,775.10 : 42,469.65 = 16,627.95 : x
  2. Step 2: Convert to fraction form
    30,775.10/42,469.65 = 16,627.95/x
  3. Step 3: Cross multiply
    30,775.10x = 42,469.65 × 16,627.95
  4. Step 4: Simplify right side
    30,775.10x = 706,183,216.72
  5. Step 5: Solve for x
    x = 706,183,216.72/30,775.10
  6. Step 6: Final answer
    x = 22,946.58

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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.