Home / 30,050.78-41,469.30-16,621.70

Finding the Fourth Proportional to 30,050.78, 41,469.30 and 16,621.70

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Solution

The fourth proportional to 30,050.78, 41,469.30 and 16,621.70 is: 22,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,050.78 : 41,469.30 = 16,621.70 : x
  2. Step 2: Convert to fraction form
    30,050.78/41,469.30 = 16,621.70/x
  3. Step 3: Cross multiply
    30,050.78x = 41,469.30 × 16,621.70
  4. Step 4: Simplify right side
    30,050.78x = 689,290,263.81
  5. Step 5: Solve for x
    x = 689,290,263.81/30,050.78
  6. Step 6: Final answer
    x = 22,937.52

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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.