Home / 18,147.30-27,220.90-4,821.63

Finding the Fourth Proportional to 18,147.30, 27,220.90 and 4,821.63

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Solution

The fourth proportional to 18,147.30, 27,220.90 and 4,821.63 is: 7,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.30 : 27,220.90 = 4,821.63 : x
  2. Step 2: Convert to fraction form
    18,147.30/27,220.90 = 4,821.63/x
  3. Step 3: Cross multiply
    18,147.30x = 27,220.90 × 4,821.63
  4. Step 4: Simplify right side
    18,147.30x = 131,249,130.04
  5. Step 5: Solve for x
    x = 131,249,130.04/18,147.30
  6. Step 6: Final answer
    x = 7,232.43

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1.5x scale

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.