Home / 30,923.92-42,697.20-19,003.24

Finding the Fourth Proportional to 30,923.92, 42,697.20 and 19,003.24

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Solution

The fourth proportional to 30,923.92, 42,697.20 and 19,003.24 is: 26,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,923.92 : 42,697.20 = 19,003.24 : x
  2. Step 2: Convert to fraction form
    30,923.92/42,697.20 = 19,003.24/x
  3. Step 3: Cross multiply
    30,923.92x = 42,697.20 × 19,003.24
  4. Step 4: Simplify right side
    30,923.92x = 811,385,138.93
  5. Step 5: Solve for x
    x = 811,385,138.93/30,923.92
  6. Step 6: Final answer
    x = 26,238.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.