Home / 30,048.48-45,075.30-7,861.86

Finding the Fourth Proportional to 30,048.48, 45,075.30 and 7,861.86

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Solution

The fourth proportional to 30,048.48, 45,075.30 and 7,861.86 is: 11,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,048.48 : 45,075.30 = 7,861.86 : x
  2. Step 2: Convert to fraction form
    30,048.48/45,075.30 = 7,861.86/x
  3. Step 3: Cross multiply
    30,048.48x = 45,075.30 × 7,861.86
  4. Step 4: Simplify right side
    30,048.48x = 354,375,698.06
  5. Step 5: Solve for x
    x = 354,375,698.06/30,048.48
  6. Step 6: Final answer
    x = 11,793.47

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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.