Home / 19,821.12-27,352.92-11,437.44

Finding the Fourth Proportional to 19,821.12, 27,352.92 and 11,437.44

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Solution

The fourth proportional to 19,821.12, 27,352.92 and 11,437.44 is: 15,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.12 : 27,352.92 = 11,437.44 : x
  2. Step 2: Convert to fraction form
    19,821.12/27,352.92 = 11,437.44/x
  3. Step 3: Cross multiply
    19,821.12x = 27,352.92 × 11,437.44
  4. Step 4: Simplify right side
    19,821.12x = 312,847,381.32
  5. Step 5: Solve for x
    x = 312,847,381.32/19,821.12
  6. Step 6: Final answer
    x = 15,783.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.