Home / 43,515.09-65,260.49-15,431.58

Finding the Fourth Proportional to 43,515.09, 65,260.49 and 15,431.58

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Solution

The fourth proportional to 43,515.09, 65,260.49 and 15,431.58 is: 23,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.09 : 65,260.49 = 15,431.58 : x
  2. Step 2: Convert to fraction form
    43,515.09/65,260.49 = 15,431.58/x
  3. Step 3: Cross multiply
    43,515.09x = 65,260.49 × 15,431.58
  4. Step 4: Simplify right side
    43,515.09x = 1,007,072,395.12
  5. Step 5: Solve for x
    x = 1,007,072,395.12/43,515.09
  6. Step 6: Final answer
    x = 23,143.06

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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.