Home / 20,914.58-28,862.04-11,962.07

Finding the Fourth Proportional to 20,914.58, 28,862.04 and 11,962.07

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Solution

The fourth proportional to 20,914.58, 28,862.04 and 11,962.07 is: 16,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.58 : 28,862.04 = 11,962.07 : x
  2. Step 2: Convert to fraction form
    20,914.58/28,862.04 = 11,962.07/x
  3. Step 3: Cross multiply
    20,914.58x = 28,862.04 × 11,962.07
  4. Step 4: Simplify right side
    20,914.58x = 345,249,799.13
  5. Step 5: Solve for x
    x = 345,249,799.13/20,914.58
  6. Step 6: Final answer
    x = 16,507.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.