Home / 21,009.26-31,519.66-11,014.68

Finding the Fourth Proportional to 21,009.26, 31,519.66 and 11,014.68

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Solution

The fourth proportional to 21,009.26, 31,519.66 and 11,014.68 is: 16,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009.26 : 31,519.66 = 11,014.68 : x
  2. Step 2: Convert to fraction form
    21,009.26/31,519.66 = 11,014.68/x
  3. Step 3: Cross multiply
    21,009.26x = 31,519.66 × 11,014.68
  4. Step 4: Simplify right side
    21,009.26x = 347,178,968.61
  5. Step 5: Solve for x
    x = 347,178,968.61/21,009.26
  6. Step 6: Final answer
    x = 16,525.05

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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.