Home / 19,180.02-28,771.38-5,140.02

Finding the Fourth Proportional to 19,180.02, 28,771.38 and 5,140.02

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Solution

The fourth proportional to 19,180.02, 28,771.38 and 5,140.02 is: 7,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.02 : 28,771.38 = 5,140.02 : x
  2. Step 2: Convert to fraction form
    19,180.02/28,771.38 = 5,140.02/x
  3. Step 3: Cross multiply
    19,180.02x = 28,771.38 × 5,140.02
  4. Step 4: Simplify right side
    19,180.02x = 147,885,468.63
  5. Step 5: Solve for x
    x = 147,885,468.63/19,180.02
  6. Step 6: Final answer
    x = 7,710.39

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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.