Home / 28,296.58-42,428.61-11,668.09

Finding the Fourth Proportional to 28,296.58, 42,428.61 and 11,668.09

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Solution

The fourth proportional to 28,296.58, 42,428.61 and 11,668.09 is: 17,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.58 : 42,428.61 = 11,668.09 : x
  2. Step 2: Convert to fraction form
    28,296.58/42,428.61 = 11,668.09/x
  3. Step 3: Cross multiply
    28,296.58x = 42,428.61 × 11,668.09
  4. Step 4: Simplify right side
    28,296.58x = 495,060,840.05
  5. Step 5: Solve for x
    x = 495,060,840.05/28,296.58
  6. Step 6: Final answer
    x = 17,495.43

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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.