Home / 30,130.99-45,151.94-28,446.03

Finding the Fourth Proportional to 30,130.99, 45,151.94 and 28,446.03

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Solution

The fourth proportional to 30,130.99, 45,151.94 and 28,446.03 is: 42,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.99 : 45,151.94 = 28,446.03 : x
  2. Step 2: Convert to fraction form
    30,130.99/45,151.94 = 28,446.03/x
  3. Step 3: Cross multiply
    30,130.99x = 45,151.94 × 28,446.03
  4. Step 4: Simplify right side
    30,130.99x = 1,284,393,285.15
  5. Step 5: Solve for x
    x = 1,284,393,285.15/30,130.99
  6. Step 6: Final answer
    x = 42,626.98

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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.