Home / 19,445.37-29,140.72-11,112.90

Finding the Fourth Proportional to 19,445.37, 29,140.72 and 11,112.90

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Solution

The fourth proportional to 19,445.37, 29,140.72 and 11,112.90 is: 16,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.37 : 29,140.72 = 11,112.90 : x
  2. Step 2: Convert to fraction form
    19,445.37/29,140.72 = 11,112.90/x
  3. Step 3: Cross multiply
    19,445.37x = 29,140.72 × 11,112.90
  4. Step 4: Simplify right side
    19,445.37x = 323,837,907.29
  5. Step 5: Solve for x
    x = 323,837,907.29/19,445.37
  6. Step 6: Final answer
    x = 16,653.73

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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.