Home / 39,141.06-58,706.06-12,842.40

Finding the Fourth Proportional to 39,141.06, 58,706.06 and 12,842.40

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Solution

The fourth proportional to 39,141.06, 58,706.06 and 12,842.40 is: 19,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141.06 : 58,706.06 = 12,842.40 : x
  2. Step 2: Convert to fraction form
    39,141.06/58,706.06 = 12,842.40/x
  3. Step 3: Cross multiply
    39,141.06x = 58,706.06 × 12,842.40
  4. Step 4: Simplify right side
    39,141.06x = 753,926,704.94
  5. Step 5: Solve for x
    x = 753,926,704.94/39,141.06
  6. Step 6: Final answer
    x = 19,261.79

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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.