Home / 30,288.63-45,425.88-11,561.79

Finding the Fourth Proportional to 30,288.63, 45,425.88 and 11,561.79

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Solution

The fourth proportional to 30,288.63, 45,425.88 and 11,561.79 is: 17,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.63 : 45,425.88 = 11,561.79 : x
  2. Step 2: Convert to fraction form
    30,288.63/45,425.88 = 11,561.79/x
  3. Step 3: Cross multiply
    30,288.63x = 45,425.88 × 11,561.79
  4. Step 4: Simplify right side
    30,288.63x = 525,204,485.13
  5. Step 5: Solve for x
    x = 525,204,485.13/30,288.63
  6. Step 6: Final answer
    x = 17,339.99

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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.