Home / 30,764.96-42,455.64-16,617.80

Finding the Fourth Proportional to 30,764.96, 42,455.64 and 16,617.80

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Solution

The fourth proportional to 30,764.96, 42,455.64 and 16,617.80 is: 22,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.96 : 42,455.64 = 16,617.80 : x
  2. Step 2: Convert to fraction form
    30,764.96/42,455.64 = 16,617.80/x
  3. Step 3: Cross multiply
    30,764.96x = 42,455.64 × 16,617.80
  4. Step 4: Simplify right side
    30,764.96x = 705,519,250.16
  5. Step 5: Solve for x
    x = 705,519,250.16/30,764.96
  6. Step 6: Final answer
    x = 22,932.56

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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.