Home / 19,871.04-29,806.50-5,079.96

Finding the Fourth Proportional to 19,871.04, 29,806.50 and 5,079.96

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Solution

The fourth proportional to 19,871.04, 29,806.50 and 5,079.96 is: 7,619.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.04 : 29,806.50 = 5,079.96 : x
  2. Step 2: Convert to fraction form
    19,871.04/29,806.50 = 5,079.96/x
  3. Step 3: Cross multiply
    19,871.04x = 29,806.50 × 5,079.96
  4. Step 4: Simplify right side
    19,871.04x = 151,415,827.74
  5. Step 5: Solve for x
    x = 151,415,827.74/19,871.04
  6. Step 6: Final answer
    x = 7,619.92

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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.