Home / 28,664.15-42,987.92-9,943.43

Finding the Fourth Proportional to 28,664.15, 42,987.92 and 9,943.43

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Solution

The fourth proportional to 28,664.15, 42,987.92 and 9,943.43 is: 14,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.15 : 42,987.92 = 9,943.43 : x
  2. Step 2: Convert to fraction form
    28,664.15/42,987.92 = 9,943.43/x
  3. Step 3: Cross multiply
    28,664.15x = 42,987.92 × 9,943.43
  4. Step 4: Simplify right side
    28,664.15x = 427,447,108.71
  5. Step 5: Solve for x
    x = 427,447,108.71/28,664.15
  6. Step 6: Final answer
    x = 14,912.26

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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.