Home / 20,190.30-27,862.35-11,693.58

Finding the Fourth Proportional to 20,190.30, 27,862.35 and 11,693.58

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Solution

The fourth proportional to 20,190.30, 27,862.35 and 11,693.58 is: 16,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.30 : 27,862.35 = 11,693.58 : x
  2. Step 2: Convert to fraction form
    20,190.30/27,862.35 = 11,693.58/x
  3. Step 3: Cross multiply
    20,190.30x = 27,862.35 × 11,693.58
  4. Step 4: Simplify right side
    20,190.30x = 325,810,618.71
  5. Step 5: Solve for x
    x = 325,810,618.71/20,190.30
  6. Step 6: Final answer
    x = 16,136.99

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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.