Home / 20,590.37-30,919.71-12,848.39

Finding the Fourth Proportional to 20,590.37, 30,919.71 and 12,848.39

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Solution

The fourth proportional to 20,590.37, 30,919.71 and 12,848.39 is: 19,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.37 : 30,919.71 = 12,848.39 : x
  2. Step 2: Convert to fraction form
    20,590.37/30,919.71 = 12,848.39/x
  3. Step 3: Cross multiply
    20,590.37x = 30,919.71 × 12,848.39
  4. Step 4: Simplify right side
    20,590.37x = 397,268,502.30
  5. Step 5: Solve for x
    x = 397,268,502.30/20,590.37
  6. Step 6: Final answer
    x = 19,293.90

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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.