Home / 28,681.23-43,021.87-8,961.48

Finding the Fourth Proportional to 28,681.23, 43,021.87 and 8,961.48

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Solution

The fourth proportional to 28,681.23, 43,021.87 and 8,961.48 is: 13,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.23 : 43,021.87 = 8,961.48 : x
  2. Step 2: Convert to fraction form
    28,681.23/43,021.87 = 8,961.48/x
  3. Step 3: Cross multiply
    28,681.23x = 43,021.87 × 8,961.48
  4. Step 4: Simplify right side
    28,681.23x = 385,539,605.16
  5. Step 5: Solve for x
    x = 385,539,605.16/28,681.23
  6. Step 6: Final answer
    x = 13,442.23

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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.