Home / 20,261.42-27,973.60-13,898.67

Finding the Fourth Proportional to 20,261.42, 27,973.60 and 13,898.67

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Solution

The fourth proportional to 20,261.42, 27,973.60 and 13,898.67 is: 19,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.42 : 27,973.60 = 13,898.67 : x
  2. Step 2: Convert to fraction form
    20,261.42/27,973.60 = 13,898.67/x
  3. Step 3: Cross multiply
    20,261.42x = 27,973.60 × 13,898.67
  4. Step 4: Simplify right side
    20,261.42x = 388,795,835.11
  5. Step 5: Solve for x
    x = 388,795,835.11/20,261.42
  6. Step 6: Final answer
    x = 19,188.97

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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.