Home / 22,830.12-31,505.38-12,758.44

Finding the Fourth Proportional to 22,830.12, 31,505.38 and 12,758.44

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Solution

The fourth proportional to 22,830.12, 31,505.38 and 12,758.44 is: 17,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,830.12 : 31,505.38 = 12,758.44 : x
  2. Step 2: Convert to fraction form
    22,830.12/31,505.38 = 12,758.44/x
  3. Step 3: Cross multiply
    22,830.12x = 31,505.38 × 12,758.44
  4. Step 4: Simplify right side
    22,830.12x = 401,959,500.41
  5. Step 5: Solve for x
    x = 401,959,500.41/22,830.12
  6. Step 6: Final answer
    x = 17,606.54

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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.