Home / 20,369.24-28,109.55-11,294.58

Finding the Fourth Proportional to 20,369.24, 28,109.55 and 11,294.58

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Solution

The fourth proportional to 20,369.24, 28,109.55 and 11,294.58 is: 15,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.24 : 28,109.55 = 11,294.58 : x
  2. Step 2: Convert to fraction form
    20,369.24/28,109.55 = 11,294.58/x
  3. Step 3: Cross multiply
    20,369.24x = 28,109.55 × 11,294.58
  4. Step 4: Simplify right side
    20,369.24x = 317,485,561.24
  5. Step 5: Solve for x
    x = 317,485,561.24/20,369.24
  6. Step 6: Final answer
    x = 15,586.52

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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.