Home / 14,233.80-21,318.30-13,909.80

Finding the Fourth Proportional to 14,233.80, 21,318.30 and 13,909.80

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Solution

The fourth proportional to 14,233.80, 21,318.30 and 13,909.80 is: 20,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,233.80 : 21,318.30 = 13,909.80 : x
  2. Step 2: Convert to fraction form
    14,233.80/21,318.30 = 13,909.80/x
  3. Step 3: Cross multiply
    14,233.80x = 21,318.30 × 13,909.80
  4. Step 4: Simplify right side
    14,233.80x = 296,533,289.34
  5. Step 5: Solve for x
    x = 296,533,289.34/14,233.80
  6. Step 6: Final answer
    x = 20,833.04

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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.