Home / 43,168.91-64,736.33-20,975.72

Finding the Fourth Proportional to 43,168.91, 64,736.33 and 20,975.72

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Solution

The fourth proportional to 43,168.91, 64,736.33 and 20,975.72 is: 31,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,168.91 : 64,736.33 = 20,975.72 : x
  2. Step 2: Convert to fraction form
    43,168.91/64,736.33 = 20,975.72/x
  3. Step 3: Cross multiply
    43,168.91x = 64,736.33 × 20,975.72
  4. Step 4: Simplify right side
    43,168.91x = 1,357,890,703.35
  5. Step 5: Solve for x
    x = 1,357,890,703.35/43,168.91
  6. Step 6: Final answer
    x = 31,455.30

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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.