Home / 20,562.36-28,383.01-12,495.97

Finding the Fourth Proportional to 20,562.36, 28,383.01 and 12,495.97

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Solution

The fourth proportional to 20,562.36, 28,383.01 and 12,495.97 is: 17,248.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.36 : 28,383.01 = 12,495.97 : x
  2. Step 2: Convert to fraction form
    20,562.36/28,383.01 = 12,495.97/x
  3. Step 3: Cross multiply
    20,562.36x = 28,383.01 × 12,495.97
  4. Step 4: Simplify right side
    20,562.36x = 354,673,245.71
  5. Step 5: Solve for x
    x = 354,673,245.71/20,562.36
  6. Step 6: Final answer
    x = 17,248.67

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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.