Home / 19,399.10-29,135.55-12,054.88

Finding the Fourth Proportional to 19,399.10, 29,135.55 and 12,054.88

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Solution

The fourth proportional to 19,399.10, 29,135.55 and 12,054.88 is: 18,105.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.10 : 29,135.55 = 12,054.88 : x
  2. Step 2: Convert to fraction form
    19,399.10/29,135.55 = 12,054.88/x
  3. Step 3: Cross multiply
    19,399.10x = 29,135.55 × 12,054.88
  4. Step 4: Simplify right side
    19,399.10x = 351,225,531.35
  5. Step 5: Solve for x
    x = 351,225,531.35/19,399.10
  6. Step 6: Final answer
    x = 18,105.25

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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.