Home / 28,975.50-43,451.91-12,343.14

Finding the Fourth Proportional to 28,975.50, 43,451.91 and 12,343.14

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Solution

The fourth proportional to 28,975.50, 43,451.91 and 12,343.14 is: 18,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.50 : 43,451.91 = 12,343.14 : x
  2. Step 2: Convert to fraction form
    28,975.50/43,451.91 = 12,343.14/x
  3. Step 3: Cross multiply
    28,975.50x = 43,451.91 × 12,343.14
  4. Step 4: Simplify right side
    28,975.50x = 536,333,008.40
  5. Step 5: Solve for x
    x = 536,333,008.40/28,975.50
  6. Step 6: Final answer
    x = 18,509.88

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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.