Home / 31,145.05-46,732.16-13,612.60

Finding the Fourth Proportional to 31,145.05, 46,732.16 and 13,612.60

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Solution

The fourth proportional to 31,145.05, 46,732.16 and 13,612.60 is: 20,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,145.05 : 46,732.16 = 13,612.60 : x
  2. Step 2: Convert to fraction form
    31,145.05/46,732.16 = 13,612.60/x
  3. Step 3: Cross multiply
    31,145.05x = 46,732.16 × 13,612.60
  4. Step 4: Simplify right side
    31,145.05x = 636,146,201.22
  5. Step 5: Solve for x
    x = 636,146,201.22/31,145.05
  6. Step 6: Final answer
    x = 20,425.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.