Home / 30,669.23-42,322.99-18,732.57

Finding the Fourth Proportional to 30,669.23, 42,322.99 and 18,732.57

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Solution

The fourth proportional to 30,669.23, 42,322.99 and 18,732.57 is: 25,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,669.23 : 42,322.99 = 18,732.57 : x
  2. Step 2: Convert to fraction form
    30,669.23/42,322.99 = 18,732.57/x
  3. Step 3: Cross multiply
    30,669.23x = 42,322.99 × 18,732.57
  4. Step 4: Simplify right side
    30,669.23x = 792,818,372.78
  5. Step 5: Solve for x
    x = 792,818,372.78/30,669.23
  6. Step 6: Final answer
    x = 25,850.61

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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.