Home / 43,210.38-64,815.57-10,378.38

Finding the Fourth Proportional to 43,210.38, 64,815.57 and 10,378.38

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Solution

The fourth proportional to 43,210.38, 64,815.57 and 10,378.38 is: 15,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,210.38 : 64,815.57 = 10,378.38 : x
  2. Step 2: Convert to fraction form
    43,210.38/64,815.57 = 10,378.38/x
  3. Step 3: Cross multiply
    43,210.38x = 64,815.57 × 10,378.38
  4. Step 4: Simplify right side
    43,210.38x = 672,680,615.38
  5. Step 5: Solve for x
    x = 672,680,615.38/43,210.38
  6. Step 6: Final answer
    x = 15,567.57

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Similar ratio
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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.