Home / 30,791.23-42,491.90-16,644.07

Finding the Fourth Proportional to 30,791.23, 42,491.90 and 16,644.07

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Solution

The fourth proportional to 30,791.23, 42,491.90 and 16,644.07 is: 22,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.23 : 42,491.90 = 16,644.07 : x
  2. Step 2: Convert to fraction form
    30,791.23/42,491.90 = 16,644.07/x
  3. Step 3: Cross multiply
    30,791.23x = 42,491.90 × 16,644.07
  4. Step 4: Simplify right side
    30,791.23x = 707,238,158.03
  5. Step 5: Solve for x
    x = 707,238,158.03/30,791.23
  6. Step 6: Final answer
    x = 22,968.82

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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.