Home / 19,012.02-28,519.69-4,971.99

Finding the Fourth Proportional to 19,012.02, 28,519.69 and 4,971.99

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Solution

The fourth proportional to 19,012.02, 28,519.69 and 4,971.99 is: 7,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.02 : 28,519.69 = 4,971.99 : x
  2. Step 2: Convert to fraction form
    19,012.02/28,519.69 = 4,971.99/x
  3. Step 3: Cross multiply
    19,012.02x = 28,519.69 × 4,971.99
  4. Step 4: Simplify right side
    19,012.02x = 141,799,619.70
  5. Step 5: Solve for x
    x = 141,799,619.70/19,012.02
  6. Step 6: Final answer
    x = 7,458.42

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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.