Home / 26,475.28-39,701.25-12,439.30

Finding the Fourth Proportional to 26,475.28, 39,701.25 and 12,439.30

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Solution

The fourth proportional to 26,475.28, 39,701.25 and 12,439.30 is: 18,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,475.28 : 39,701.25 = 12,439.30 : x
  2. Step 2: Convert to fraction form
    26,475.28/39,701.25 = 12,439.30/x
  3. Step 3: Cross multiply
    26,475.28x = 39,701.25 × 12,439.30
  4. Step 4: Simplify right side
    26,475.28x = 493,855,560.62
  5. Step 5: Solve for x
    x = 493,855,560.62/26,475.28
  6. Step 6: Final answer
    x = 18,653.46

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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.