Home / 19,980.68-29,942.46-14,674.08

Finding the Fourth Proportional to 19,980.68, 29,942.46 and 14,674.08

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Solution

The fourth proportional to 19,980.68, 29,942.46 and 14,674.08 is: 21,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.68 : 29,942.46 = 14,674.08 : x
  2. Step 2: Convert to fraction form
    19,980.68/29,942.46 = 14,674.08/x
  3. Step 3: Cross multiply
    19,980.68x = 29,942.46 × 14,674.08
  4. Step 4: Simplify right side
    19,980.68x = 439,378,053.44
  5. Step 5: Solve for x
    x = 439,378,053.44/19,980.68
  6. Step 6: Final answer
    x = 21,990.15

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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.