Home / 28,869.66-43,271.46-13,086.72

Finding the Fourth Proportional to 28,869.66, 43,271.46 and 13,086.72

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Solution

The fourth proportional to 28,869.66, 43,271.46 and 13,086.72 is: 19,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.66 : 43,271.46 = 13,086.72 : x
  2. Step 2: Convert to fraction form
    28,869.66/43,271.46 = 13,086.72/x
  3. Step 3: Cross multiply
    28,869.66x = 43,271.46 × 13,086.72
  4. Step 4: Simplify right side
    28,869.66x = 566,281,481.01
  5. Step 5: Solve for x
    x = 566,281,481.01/28,869.66
  6. Step 6: Final answer
    x = 19,615.11

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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.