Home / 43,011.35-64,517.00-13,431.72

Finding the Fourth Proportional to 43,011.35, 64,517.00 and 13,431.72

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Solution

The fourth proportional to 43,011.35, 64,517.00 and 13,431.72 is: 20,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,011.35 : 64,517.00 = 13,431.72 : x
  2. Step 2: Convert to fraction form
    43,011.35/64,517.00 = 13,431.72/x
  3. Step 3: Cross multiply
    43,011.35x = 64,517.00 × 13,431.72
  4. Step 4: Simplify right side
    43,011.35x = 866,574,084.37
  5. Step 5: Solve for x
    x = 866,574,084.37/43,011.35
  6. Step 6: Final answer
    x = 20,147.57

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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.