Home / 18,871.34-28,307.07-5,723.82

Finding the Fourth Proportional to 18,871.34, 28,307.07 and 5,723.82

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Solution

The fourth proportional to 18,871.34, 28,307.07 and 5,723.82 is: 8,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.34 : 28,307.07 = 5,723.82 : x
  2. Step 2: Convert to fraction form
    18,871.34/28,307.07 = 5,723.82/x
  3. Step 3: Cross multiply
    18,871.34x = 28,307.07 × 5,723.82
  4. Step 4: Simplify right side
    18,871.34x = 162,024,573.41
  5. Step 5: Solve for x
    x = 162,024,573.41/18,871.34
  6. Step 6: Final answer
    x = 8,585.75

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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.