Home / 30,190.63-45,285.95-9,415.75

Finding the Fourth Proportional to 30,190.63, 45,285.95 and 9,415.75

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Solution

The fourth proportional to 30,190.63, 45,285.95 and 9,415.75 is: 14,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.63 : 45,285.95 = 9,415.75 : x
  2. Step 2: Convert to fraction form
    30,190.63/45,285.95 = 9,415.75/x
  3. Step 3: Cross multiply
    30,190.63x = 45,285.95 × 9,415.75
  4. Step 4: Simplify right side
    30,190.63x = 426,401,183.71
  5. Step 5: Solve for x
    x = 426,401,183.71/30,190.63
  6. Step 6: Final answer
    x = 14,123.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.