Home / 31,257.42-43,136.43-17,830.86

Finding the Fourth Proportional to 31,257.42, 43,136.43 and 17,830.86

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Solution

The fourth proportional to 31,257.42, 43,136.43 and 17,830.86 is: 24,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.42 : 43,136.43 = 17,830.86 : x
  2. Step 2: Convert to fraction form
    31,257.42/43,136.43 = 17,830.86/x
  3. Step 3: Cross multiply
    31,257.42x = 43,136.43 × 17,830.86
  4. Step 4: Simplify right side
    31,257.42x = 769,159,644.23
  5. Step 5: Solve for x
    x = 769,159,644.23/31,257.42
  6. Step 6: Final answer
    x = 24,607.27

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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.