Home / 28,790.10-43,122.54-13,967.82

Finding the Fourth Proportional to 28,790.10, 43,122.54 and 13,967.82

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Solution

The fourth proportional to 28,790.10, 43,122.54 and 13,967.82 is: 20,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.10 : 43,122.54 = 13,967.82 : x
  2. Step 2: Convert to fraction form
    28,790.10/43,122.54 = 13,967.82/x
  3. Step 3: Cross multiply
    28,790.10x = 43,122.54 × 13,967.82
  4. Step 4: Simplify right side
    28,790.10x = 602,327,876.66
  5. Step 5: Solve for x
    x = 602,327,876.66/28,790.10
  6. Step 6: Final answer
    x = 20,921.35

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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.