Home / 30,723.76-42,400.32-17,299.36

Finding the Fourth Proportional to 30,723.76, 42,400.32 and 17,299.36

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Solution

The fourth proportional to 30,723.76, 42,400.32 and 17,299.36 is: 23,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.76 : 42,400.32 = 17,299.36 : x
  2. Step 2: Convert to fraction form
    30,723.76/42,400.32 = 17,299.36/x
  3. Step 3: Cross multiply
    30,723.76x = 42,400.32 × 17,299.36
  4. Step 4: Simplify right side
    30,723.76x = 733,498,399.80
  5. Step 5: Solve for x
    x = 733,498,399.80/30,723.76
  6. Step 6: Final answer
    x = 23,873.98

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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.