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Finding the Fourth Proportional to 30,277.99, 45,420.08 and 11,573.77

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Solution

The fourth proportional to 30,277.99, 45,420.08 and 11,573.77 is: 17,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.99 : 45,420.08 = 11,573.77 : x
  2. Step 2: Convert to fraction form
    30,277.99/45,420.08 = 11,573.77/x
  3. Step 3: Cross multiply
    30,277.99x = 45,420.08 × 11,573.77
  4. Step 4: Simplify right side
    30,277.99x = 525,681,559.30
  5. Step 5: Solve for x
    x = 525,681,559.30/30,277.99
  6. Step 6: Final answer
    x = 17,361.84

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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.