Home / 39,609.12-59,426.92-12,956.32

Finding the Fourth Proportional to 39,609.12, 59,426.92 and 12,956.32

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Solution

The fourth proportional to 39,609.12, 59,426.92 and 12,956.32 is: 19,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609.12 : 59,426.92 = 12,956.32 : x
  2. Step 2: Convert to fraction form
    39,609.12/59,426.92 = 12,956.32/x
  3. Step 3: Cross multiply
    39,609.12x = 59,426.92 × 12,956.32
  4. Step 4: Simplify right side
    39,609.12x = 769,954,209.73
  5. Step 5: Solve for x
    x = 769,954,209.73/39,609.12
  6. Step 6: Final answer
    x = 19,438.81

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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.