Home / 43,211.25-64,816.88-10,379.25

Finding the Fourth Proportional to 43,211.25, 64,816.88 and 10,379.25

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Solution

The fourth proportional to 43,211.25, 64,816.88 and 10,379.25 is: 15,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,211.25 : 64,816.88 = 10,379.25 : x
  2. Step 2: Convert to fraction form
    43,211.25/64,816.88 = 10,379.25/x
  3. Step 3: Cross multiply
    43,211.25x = 64,816.88 × 10,379.25
  4. Step 4: Simplify right side
    43,211.25x = 672,750,549.84
  5. Step 5: Solve for x
    x = 672,750,549.84/43,211.25
  6. Step 6: Final answer
    x = 15,568.88

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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.