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Finding the Fourth Proportional to 28,953.53, 43,425.02 and 8,686.11

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Solution

The fourth proportional to 28,953.53, 43,425.02 and 8,686.11 is: 13,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.53 : 43,425.02 = 8,686.11 : x
  2. Step 2: Convert to fraction form
    28,953.53/43,425.02 = 8,686.11/x
  3. Step 3: Cross multiply
    28,953.53x = 43,425.02 × 8,686.11
  4. Step 4: Simplify right side
    28,953.53x = 377,194,457.04
  5. Step 5: Solve for x
    x = 377,194,457.04/28,953.53
  6. Step 6: Final answer
    x = 13,027.58

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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.