Home / 21,404.40-32,115.60-12,033.06

Finding the Fourth Proportional to 21,404.40, 32,115.60 and 12,033.06

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Solution

The fourth proportional to 21,404.40, 32,115.60 and 12,033.06 is: 18,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.40 : 32,115.60 = 12,033.06 : x
  2. Step 2: Convert to fraction form
    21,404.40/32,115.60 = 12,033.06/x
  3. Step 3: Cross multiply
    21,404.40x = 32,115.60 × 12,033.06
  4. Step 4: Simplify right side
    21,404.40x = 386,448,941.74
  5. Step 5: Solve for x
    x = 386,448,941.74/21,404.40
  6. Step 6: Final answer
    x = 18,054.65

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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.