Home / 13,890.26-20,835.53-3,502.01

Finding the Fourth Proportional to 13,890.26, 20,835.53 and 3,502.01

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Solution

The fourth proportional to 13,890.26, 20,835.53 and 3,502.01 is: 5,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.26 : 20,835.53 = 3,502.01 : x
  2. Step 2: Convert to fraction form
    13,890.26/20,835.53 = 3,502.01/x
  3. Step 3: Cross multiply
    13,890.26x = 20,835.53 × 3,502.01
  4. Step 4: Simplify right side
    13,890.26x = 72,966,234.42
  5. Step 5: Solve for x
    x = 72,966,234.42/13,890.26
  6. Step 6: Final answer
    x = 5,253.05

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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.