Home / 19,683.24-29,409.72-18,994.38

Finding the Fourth Proportional to 19,683.24, 29,409.72 and 18,994.38

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Solution

The fourth proportional to 19,683.24, 29,409.72 and 18,994.38 is: 28,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.24 : 29,409.72 = 18,994.38 : x
  2. Step 2: Convert to fraction form
    19,683.24/29,409.72 = 18,994.38/x
  3. Step 3: Cross multiply
    19,683.24x = 29,409.72 × 18,994.38
  4. Step 4: Simplify right side
    19,683.24x = 558,619,397.37
  5. Step 5: Solve for x
    x = 558,619,397.37/19,683.24
  6. Step 6: Final answer
    x = 28,380.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.