Home / 13,462.80-20,205.87-13,431.67

Finding the Fourth Proportional to 13,462.80, 20,205.87 and 13,431.67

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Solution

The fourth proportional to 13,462.80, 20,205.87 and 13,431.67 is: 20,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.80 : 20,205.87 = 13,431.67 : x
  2. Step 2: Convert to fraction form
    13,462.80/20,205.87 = 13,431.67/x
  3. Step 3: Cross multiply
    13,462.80x = 20,205.87 × 13,431.67
  4. Step 4: Simplify right side
    13,462.80x = 271,398,476.87
  5. Step 5: Solve for x
    x = 271,398,476.87/13,462.80
  6. Step 6: Final answer
    x = 20,159.14

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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.