Home / 28,647.02-42,953.26-12,849.20

Finding the Fourth Proportional to 28,647.02, 42,953.26 and 12,849.20

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Solution

The fourth proportional to 28,647.02, 42,953.26 and 12,849.20 is: 19,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.02 : 42,953.26 = 12,849.20 : x
  2. Step 2: Convert to fraction form
    28,647.02/42,953.26 = 12,849.20/x
  3. Step 3: Cross multiply
    28,647.02x = 42,953.26 × 12,849.20
  4. Step 4: Simplify right side
    28,647.02x = 551,915,028.39
  5. Step 5: Solve for x
    x = 551,915,028.39/28,647.02
  6. Step 6: Final answer
    x = 19,266.05

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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.