Home / 43,278.75-64,918.13-10,446.75

Finding the Fourth Proportional to 43,278.75, 64,918.13 and 10,446.75

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Solution

The fourth proportional to 43,278.75, 64,918.13 and 10,446.75 is: 15,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278.75 : 64,918.13 = 10,446.75 : x
  2. Step 2: Convert to fraction form
    43,278.75/64,918.13 = 10,446.75/x
  3. Step 3: Cross multiply
    43,278.75x = 64,918.13 × 10,446.75
  4. Step 4: Simplify right side
    43,278.75x = 678,183,474.58
  5. Step 5: Solve for x
    x = 678,183,474.58/43,278.75
  6. Step 6: Final answer
    x = 15,670.13

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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.