Home / 15,486.06-21,480.42-14,955.03

Finding the Fourth Proportional to 15,486.06, 21,480.42 and 14,955.03

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Solution

The fourth proportional to 15,486.06, 21,480.42 and 14,955.03 is: 20,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.06 : 21,480.42 = 14,955.03 : x
  2. Step 2: Convert to fraction form
    15,486.06/21,480.42 = 14,955.03/x
  3. Step 3: Cross multiply
    15,486.06x = 21,480.42 × 14,955.03
  4. Step 4: Simplify right side
    15,486.06x = 321,240,255.41
  5. Step 5: Solve for x
    x = 321,240,255.41/15,486.06
  6. Step 6: Final answer
    x = 20,743.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.