Home / 39,609.29-59,415.71-12,956.79

Finding the Fourth Proportional to 39,609.29, 59,415.71 and 12,956.79

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Solution

The fourth proportional to 39,609.29, 59,415.71 and 12,956.79 is: 19,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,609.29 : 59,415.71 = 12,956.79 : x
  2. Step 2: Convert to fraction form
    39,609.29/59,415.71 = 12,956.79/x
  3. Step 3: Cross multiply
    39,609.29x = 59,415.71 × 12,956.79
  4. Step 4: Simplify right side
    39,609.29x = 769,837,141.83
  5. Step 5: Solve for x
    x = 769,837,141.83/39,609.29
  6. Step 6: Final answer
    x = 19,435.77

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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.