Home / 20,465.92-30,703.37-18,399.21

Finding the Fourth Proportional to 20,465.92, 30,703.37 and 18,399.21

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Solution

The fourth proportional to 20,465.92, 30,703.37 and 18,399.21 is: 27,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.92 : 30,703.37 = 18,399.21 : x
  2. Step 2: Convert to fraction form
    20,465.92/30,703.37 = 18,399.21/x
  3. Step 3: Cross multiply
    20,465.92x = 30,703.37 × 18,399.21
  4. Step 4: Simplify right side
    20,465.92x = 564,917,598.82
  5. Step 5: Solve for x
    x = 564,917,598.82/20,465.92
  6. Step 6: Final answer
    x = 27,602.84

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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.