Home / 37,620.40-56,431.42-13,929.12

Finding the Fourth Proportional to 37,620.40, 56,431.42 and 13,929.12

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Solution

The fourth proportional to 37,620.40, 56,431.42 and 13,929.12 is: 20,893.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,620.40 : 56,431.42 = 13,929.12 : x
  2. Step 2: Convert to fraction form
    37,620.40/56,431.42 = 13,929.12/x
  3. Step 3: Cross multiply
    37,620.40x = 56,431.42 × 13,929.12
  4. Step 4: Simplify right side
    37,620.40x = 786,040,020.95
  5. Step 5: Solve for x
    x = 786,040,020.95/37,620.40
  6. Step 6: Final answer
    x = 20,893.98

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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.