Home / 30,646.65-42,289.79-17,216.85

Finding the Fourth Proportional to 30,646.65, 42,289.79 and 17,216.85

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Solution

The fourth proportional to 30,646.65, 42,289.79 and 17,216.85 is: 23,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.65 : 42,289.79 = 17,216.85 : x
  2. Step 2: Convert to fraction form
    30,646.65/42,289.79 = 17,216.85/x
  3. Step 3: Cross multiply
    30,646.65x = 42,289.79 × 17,216.85
  4. Step 4: Simplify right side
    30,646.65x = 728,096,884.88
  5. Step 5: Solve for x
    x = 728,096,884.88/30,646.65
  6. Step 6: Final answer
    x = 23,757.80

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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.