Home / 20,376.36-30,564.54-13,449.24

Finding the Fourth Proportional to 20,376.36, 30,564.54 and 13,449.24

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Solution

The fourth proportional to 20,376.36, 30,564.54 and 13,449.24 is: 20,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.36 : 30,564.54 = 13,449.24 : x
  2. Step 2: Convert to fraction form
    20,376.36/30,564.54 = 13,449.24/x
  3. Step 3: Cross multiply
    20,376.36x = 30,564.54 × 13,449.24
  4. Step 4: Simplify right side
    20,376.36x = 411,069,833.95
  5. Step 5: Solve for x
    x = 411,069,833.95/20,376.36
  6. Step 6: Final answer
    x = 20,173.86

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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.