Home / 43,172.64-64,757.60-13,589.76

Finding the Fourth Proportional to 43,172.64, 64,757.60 and 13,589.76

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Solution

The fourth proportional to 43,172.64, 64,757.60 and 13,589.76 is: 20,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.64 : 64,757.60 = 13,589.76 : x
  2. Step 2: Convert to fraction form
    43,172.64/64,757.60 = 13,589.76/x
  3. Step 3: Cross multiply
    43,172.64x = 64,757.60 × 13,589.76
  4. Step 4: Simplify right side
    43,172.64x = 880,040,242.18
  5. Step 5: Solve for x
    x = 880,040,242.18/43,172.64
  6. Step 6: Final answer
    x = 20,384.21

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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.