Home / 43,860.10-65,790.78-14,278.12

Finding the Fourth Proportional to 43,860.10, 65,790.78 and 14,278.12

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Solution

The fourth proportional to 43,860.10, 65,790.78 and 14,278.12 is: 21,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.10 : 65,790.78 = 14,278.12 : x
  2. Step 2: Convert to fraction form
    43,860.10/65,790.78 = 14,278.12/x
  3. Step 3: Cross multiply
    43,860.10x = 65,790.78 × 14,278.12
  4. Step 4: Simplify right side
    43,860.10x = 939,368,651.73
  5. Step 5: Solve for x
    x = 939,368,651.73/43,860.10
  6. Step 6: Final answer
    x = 21,417.39

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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.