Home / 22,699.05-31,327.46-13,749.67

Finding the Fourth Proportional to 22,699.05, 31,327.46 and 13,749.67

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Solution

The fourth proportional to 22,699.05, 31,327.46 and 13,749.67 is: 18,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.05 : 31,327.46 = 13,749.67 : x
  2. Step 2: Convert to fraction form
    22,699.05/31,327.46 = 13,749.67/x
  3. Step 3: Cross multiply
    22,699.05x = 31,327.46 × 13,749.67
  4. Step 4: Simplify right side
    22,699.05x = 430,742,236.94
  5. Step 5: Solve for x
    x = 430,742,236.94/22,699.05
  6. Step 6: Final answer
    x = 18,976.22

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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.