Home / 13,555.92-20,243.67-13,409.31

Finding the Fourth Proportional to 13,555.92, 20,243.67 and 13,409.31

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Solution

The fourth proportional to 13,555.92, 20,243.67 and 13,409.31 is: 20,024.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.92 : 20,243.67 = 13,409.31 : x
  2. Step 2: Convert to fraction form
    13,555.92/20,243.67 = 13,409.31/x
  3. Step 3: Cross multiply
    13,555.92x = 20,243.67 × 13,409.31
  4. Step 4: Simplify right side
    13,555.92x = 271,453,646.57
  5. Step 5: Solve for x
    x = 271,453,646.57/13,555.92
  6. Step 6: Final answer
    x = 20,024.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.