Home / 28,955.18-43,418.10-14,141.90

Finding the Fourth Proportional to 28,955.18, 43,418.10 and 14,141.90

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Solution

The fourth proportional to 28,955.18, 43,418.10 and 14,141.90 is: 21,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.18 : 43,418.10 = 14,141.90 : x
  2. Step 2: Convert to fraction form
    28,955.18/43,418.10 = 14,141.90/x
  3. Step 3: Cross multiply
    28,955.18x = 43,418.10 × 14,141.90
  4. Step 4: Simplify right side
    28,955.18x = 614,014,428.39
  5. Step 5: Solve for x
    x = 614,014,428.39/28,955.18
  6. Step 6: Final answer
    x = 21,205.69

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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.