Home / 28,294.20-38,984.22-18,846.36

Finding the Fourth Proportional to 28,294.20, 38,984.22 and 18,846.36

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Solution

The fourth proportional to 28,294.20, 38,984.22 and 18,846.36 is: 25,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.20 : 38,984.22 = 18,846.36 : x
  2. Step 2: Convert to fraction form
    28,294.20/38,984.22 = 18,846.36/x
  3. Step 3: Cross multiply
    28,294.20x = 38,984.22 × 18,846.36
  4. Step 4: Simplify right side
    28,294.20x = 734,710,644.44
  5. Step 5: Solve for x
    x = 734,710,644.44/28,294.20
  6. Step 6: Final answer
    x = 25,966.83

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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.