Home / 38,211.82-57,314.32-13,251.32

Finding the Fourth Proportional to 38,211.82, 57,314.32 and 13,251.32

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Solution

The fourth proportional to 38,211.82, 57,314.32 and 13,251.32 is: 19,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.82 : 57,314.32 = 13,251.32 : x
  2. Step 2: Convert to fraction form
    38,211.82/57,314.32 = 13,251.32/x
  3. Step 3: Cross multiply
    38,211.82x = 57,314.32 × 13,251.32
  4. Step 4: Simplify right side
    38,211.82x = 759,490,394.90
  5. Step 5: Solve for x
    x = 759,490,394.90/38,211.82
  6. Step 6: Final answer
    x = 19,875.80

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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.