Home / 28,273.47-42,424.79-11,645.79

Finding the Fourth Proportional to 28,273.47, 42,424.79 and 11,645.79

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Solution

The fourth proportional to 28,273.47, 42,424.79 and 11,645.79 is: 17,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.47 : 42,424.79 = 11,645.79 : x
  2. Step 2: Convert to fraction form
    28,273.47/42,424.79 = 11,645.79/x
  3. Step 3: Cross multiply
    28,273.47x = 42,424.79 × 11,645.79
  4. Step 4: Simplify right side
    28,273.47x = 494,070,136.91
  5. Step 5: Solve for x
    x = 494,070,136.91/28,273.47
  6. Step 6: Final answer
    x = 17,474.69

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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.