Home / 28,531.72-42,782.32-9,548

Finding the Fourth Proportional to 28,531.72, 42,782.32 and 9,548

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Solution

The fourth proportional to 28,531.72, 42,782.32 and 9,548 is: 14,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.72 : 42,782.32 = 9,548 : x
  2. Step 2: Convert to fraction form
    28,531.72/42,782.32 = 9,548/x
  3. Step 3: Cross multiply
    28,531.72x = 42,782.32 × 9,548
  4. Step 4: Simplify right side
    28,531.72x = 408,485,591.36
  5. Step 5: Solve for x
    x = 408,485,591.36/28,531.72
  6. Step 6: Final answer
    x = 14,316.89

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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.