Home / 43,191.28-64,731.30-20,961.64

Finding the Fourth Proportional to 43,191.28, 64,731.30 and 20,961.64

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Solution

The fourth proportional to 43,191.28, 64,731.30 and 20,961.64 is: 31,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,191.28 : 64,731.30 = 20,961.64 : x
  2. Step 2: Convert to fraction form
    43,191.28/64,731.30 = 20,961.64/x
  3. Step 3: Cross multiply
    43,191.28x = 64,731.30 × 20,961.64
  4. Step 4: Simplify right side
    43,191.28x = 1,356,874,207.33
  5. Step 5: Solve for x
    x = 1,356,874,207.33/43,191.28
  6. Step 6: Final answer
    x = 31,415.47

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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.