Home / 30,774.78-42,469.24-16,627.62

Finding the Fourth Proportional to 30,774.78, 42,469.24 and 16,627.62

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Solution

The fourth proportional to 30,774.78, 42,469.24 and 16,627.62 is: 22,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,774.78 : 42,469.24 = 16,627.62 : x
  2. Step 2: Convert to fraction form
    30,774.78/42,469.24 = 16,627.62/x
  3. Step 3: Cross multiply
    30,774.78x = 42,469.24 × 16,627.62
  4. Step 4: Simplify right side
    30,774.78x = 706,162,384.41
  5. Step 5: Solve for x
    x = 706,162,384.41/30,774.78
  6. Step 6: Final answer
    x = 22,946.14

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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.