Home / 38,305.40-57,458.10-12,012.26

Finding the Fourth Proportional to 38,305.40, 57,458.10 and 12,012.26

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Solution

The fourth proportional to 38,305.40, 57,458.10 and 12,012.26 is: 18,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,305.40 : 57,458.10 = 12,012.26 : x
  2. Step 2: Convert to fraction form
    38,305.40/57,458.10 = 12,012.26/x
  3. Step 3: Cross multiply
    38,305.40x = 57,458.10 × 12,012.26
  4. Step 4: Simplify right side
    38,305.40x = 690,201,636.31
  5. Step 5: Solve for x
    x = 690,201,636.31/38,305.40
  6. Step 6: Final answer
    x = 18,018.39

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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.