Home / 21,213.03-31,817.46-10,678.86

Finding the Fourth Proportional to 21,213.03, 31,817.46 and 10,678.86

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Solution

The fourth proportional to 21,213.03, 31,817.46 and 10,678.86 is: 16,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.03 : 31,817.46 = 10,678.86 : x
  2. Step 2: Convert to fraction form
    21,213.03/31,817.46 = 10,678.86/x
  3. Step 3: Cross multiply
    21,213.03x = 31,817.46 × 10,678.86
  4. Step 4: Simplify right side
    21,213.03x = 339,774,200.90
  5. Step 5: Solve for x
    x = 339,774,200.90/21,213.03
  6. Step 6: Final answer
    x = 16,017.24

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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.