Home / 20,749.87-28,632.89-11,795.63

Finding the Fourth Proportional to 20,749.87, 28,632.89 and 11,795.63

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Solution

The fourth proportional to 20,749.87, 28,632.89 and 11,795.63 is: 16,276.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.87 : 28,632.89 = 11,795.63 : x
  2. Step 2: Convert to fraction form
    20,749.87/28,632.89 = 11,795.63/x
  3. Step 3: Cross multiply
    20,749.87x = 28,632.89 × 11,795.63
  4. Step 4: Simplify right side
    20,749.87x = 337,742,862.60
  5. Step 5: Solve for x
    x = 337,742,862.60/20,749.87
  6. Step 6: Final answer
    x = 16,276.87

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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.