Home / 21,074.01-31,619.21-9,379.23

Finding the Fourth Proportional to 21,074.01, 31,619.21 and 9,379.23

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Solution

The fourth proportional to 21,074.01, 31,619.21 and 9,379.23 is: 14,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.01 : 31,619.21 = 9,379.23 : x
  2. Step 2: Convert to fraction form
    21,074.01/31,619.21 = 9,379.23/x
  3. Step 3: Cross multiply
    21,074.01x = 31,619.21 × 9,379.23
  4. Step 4: Simplify right side
    21,074.01x = 296,563,796.11
  5. Step 5: Solve for x
    x = 296,563,796.11/21,074.01
  6. Step 6: Final answer
    x = 14,072.49

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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.