Home / 21,207.90-31,804.55-10,673.85

Finding the Fourth Proportional to 21,207.90, 31,804.55 and 10,673.85

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Solution

The fourth proportional to 21,207.90, 31,804.55 and 10,673.85 is: 16,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.90 : 31,804.55 = 10,673.85 : x
  2. Step 2: Convert to fraction form
    21,207.90/31,804.55 = 10,673.85/x
  3. Step 3: Cross multiply
    21,207.90x = 31,804.55 × 10,673.85
  4. Step 4: Simplify right side
    21,207.90x = 339,476,996.02
  5. Step 5: Solve for x
    x = 339,476,996.02/21,207.90
  6. Step 6: Final answer
    x = 16,007.10

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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.