Home / 20,852.60-31,316.22-19,183.76

Finding the Fourth Proportional to 20,852.60, 31,316.22 and 19,183.76

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Solution

The fourth proportional to 20,852.60, 31,316.22 and 19,183.76 is: 28,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.60 : 31,316.22 = 19,183.76 : x
  2. Step 2: Convert to fraction form
    20,852.60/31,316.22 = 19,183.76/x
  3. Step 3: Cross multiply
    20,852.60x = 31,316.22 × 19,183.76
  4. Step 4: Simplify right side
    20,852.60x = 600,762,848.59
  5. Step 5: Solve for x
    x = 600,762,848.59/20,852.60
  6. Step 6: Final answer
    x = 28,809.97

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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.