Home / 19,558.65-29,337.67-7,871.57

Finding the Fourth Proportional to 19,558.65, 29,337.67 and 7,871.57

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Solution

The fourth proportional to 19,558.65, 29,337.67 and 7,871.57 is: 11,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.65 : 29,337.67 = 7,871.57 : x
  2. Step 2: Convert to fraction form
    19,558.65/29,337.67 = 7,871.57/x
  3. Step 3: Cross multiply
    19,558.65x = 29,337.67 × 7,871.57
  4. Step 4: Simplify right side
    19,558.65x = 230,933,337.00
  5. Step 5: Solve for x
    x = 230,933,337.00/19,558.65
  6. Step 6: Final answer
    x = 11,807.22

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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.