Home / 39,609.15-59,423.40-12,956.69

Finding the Fourth Proportional to 39,609.15, 59,423.40 and 12,956.69

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Solution

The fourth proportional to 39,609.15, 59,423.40 and 12,956.69 is: 19,438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609.15 : 59,423.40 = 12,956.69 : x
  2. Step 2: Convert to fraction form
    39,609.15/59,423.40 = 12,956.69/x
  3. Step 3: Cross multiply
    39,609.15x = 59,423.40 × 12,956.69
  4. Step 4: Simplify right side
    39,609.15x = 769,930,275.43
  5. Step 5: Solve for x
    x = 769,930,275.43/39,609.15
  6. Step 6: Final answer
    x = 19,438.19

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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.