Home / 19,322.10-28,982.88-7,635.18

Finding the Fourth Proportional to 19,322.10, 28,982.88 and 7,635.18

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Solution

The fourth proportional to 19,322.10, 28,982.88 and 7,635.18 is: 11,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.10 : 28,982.88 = 7,635.18 : x
  2. Step 2: Convert to fraction form
    19,322.10/28,982.88 = 7,635.18/x
  3. Step 3: Cross multiply
    19,322.10x = 28,982.88 × 7,635.18
  4. Step 4: Simplify right side
    19,322.10x = 221,289,505.72
  5. Step 5: Solve for x
    x = 221,289,505.72/19,322.10
  6. Step 6: Final answer
    x = 11,452.66

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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.