Home / 19,995.04-29,989.74-10,991.96

Finding the Fourth Proportional to 19,995.04, 29,989.74 and 10,991.96

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Solution

The fourth proportional to 19,995.04, 29,989.74 and 10,991.96 is: 16,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.04 : 29,989.74 = 10,991.96 : x
  2. Step 2: Convert to fraction form
    19,995.04/29,989.74 = 10,991.96/x
  3. Step 3: Cross multiply
    19,995.04x = 29,989.74 × 10,991.96
  4. Step 4: Simplify right side
    19,995.04x = 329,646,022.49
  5. Step 5: Solve for x
    x = 329,646,022.49/19,995.04
  6. Step 6: Final answer
    x = 16,486.39

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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.