Home / 43,195.28-64,737.30-20,965.64

Finding the Fourth Proportional to 43,195.28, 64,737.30 and 20,965.64

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Solution

The fourth proportional to 43,195.28, 64,737.30 and 20,965.64 is: 31,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,195.28 : 64,737.30 = 20,965.64 : x
  2. Step 2: Convert to fraction form
    43,195.28/64,737.30 = 20,965.64/x
  3. Step 3: Cross multiply
    43,195.28x = 64,737.30 × 20,965.64
  4. Step 4: Simplify right side
    43,195.28x = 1,357,258,926.37
  5. Step 5: Solve for x
    x = 1,357,258,926.37/43,195.28
  6. Step 6: Final answer
    x = 31,421.46

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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.