Home / 19,720.06-29,559.47-8,623.80

Finding the Fourth Proportional to 19,720.06, 29,559.47 and 8,623.80

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Solution

The fourth proportional to 19,720.06, 29,559.47 and 8,623.80 is: 12,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.06 : 29,559.47 = 8,623.80 : x
  2. Step 2: Convert to fraction form
    19,720.06/29,559.47 = 8,623.80/x
  3. Step 3: Cross multiply
    19,720.06x = 29,559.47 × 8,623.80
  4. Step 4: Simplify right side
    19,720.06x = 254,914,914.27
  5. Step 5: Solve for x
    x = 254,914,914.27/19,720.06
  6. Step 6: Final answer
    x = 12,926.68

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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.