Home / 30,263.16-41,789.58-20,355.96

Finding the Fourth Proportional to 30,263.16, 41,789.58 and 20,355.96

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Solution

The fourth proportional to 30,263.16, 41,789.58 and 20,355.96 is: 28,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,263.16 : 41,789.58 = 20,355.96 : x
  2. Step 2: Convert to fraction form
    30,263.16/41,789.58 = 20,355.96/x
  3. Step 3: Cross multiply
    30,263.16x = 41,789.58 × 20,355.96
  4. Step 4: Simplify right side
    30,263.16x = 850,667,018.90
  5. Step 5: Solve for x
    x = 850,667,018.90/30,263.16
  6. Step 6: Final answer
    x = 28,109.00

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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.