Home / 28,423.44-42,649.56-19,170

Finding the Fourth Proportional to 28,423.44, 42,649.56 and 19,170

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Solution

The fourth proportional to 28,423.44, 42,649.56 and 19,170 is: 28,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.44 : 42,649.56 = 19,170 : x
  2. Step 2: Convert to fraction form
    28,423.44/42,649.56 = 19,170/x
  3. Step 3: Cross multiply
    28,423.44x = 42,649.56 × 19,170
  4. Step 4: Simplify right side
    28,423.44x = 817,592,065.20
  5. Step 5: Solve for x
    x = 817,592,065.20/28,423.44
  6. Step 6: Final answer
    x = 28,764.71

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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.