Home / 20,428.65-28,194.82-19,094.58

Finding the Fourth Proportional to 20,428.65, 28,194.82 and 19,094.58

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Solution

The fourth proportional to 20,428.65, 28,194.82 and 19,094.58 is: 26,353.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.65 : 28,194.82 = 19,094.58 : x
  2. Step 2: Convert to fraction form
    20,428.65/28,194.82 = 19,094.58/x
  3. Step 3: Cross multiply
    20,428.65x = 28,194.82 × 19,094.58
  4. Step 4: Simplify right side
    20,428.65x = 538,368,198.34
  5. Step 5: Solve for x
    x = 538,368,198.34/20,428.65
  6. Step 6: Final answer
    x = 26,353.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.