Home / 20,592.42-28,386.09-12,619.86

Finding the Fourth Proportional to 20,592.42, 28,386.09 and 12,619.86

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Solution

The fourth proportional to 20,592.42, 28,386.09 and 12,619.86 is: 17,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.42 : 28,386.09 = 12,619.86 : x
  2. Step 2: Convert to fraction form
    20,592.42/28,386.09 = 12,619.86/x
  3. Step 3: Cross multiply
    20,592.42x = 28,386.09 × 12,619.86
  4. Step 4: Simplify right side
    20,592.42x = 358,228,481.75
  5. Step 5: Solve for x
    x = 358,228,481.75/20,592.42
  6. Step 6: Final answer
    x = 17,396.13

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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.