Home / 28,761.98-43,089.48-15,625.40

Finding the Fourth Proportional to 28,761.98, 43,089.48 and 15,625.40

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Solution

The fourth proportional to 28,761.98, 43,089.48 and 15,625.40 is: 23,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.98 : 43,089.48 = 15,625.40 : x
  2. Step 2: Convert to fraction form
    28,761.98/43,089.48 = 15,625.40/x
  3. Step 3: Cross multiply
    28,761.98x = 43,089.48 × 15,625.40
  4. Step 4: Simplify right side
    28,761.98x = 673,290,145.34
  5. Step 5: Solve for x
    x = 673,290,145.34/28,761.98
  6. Step 6: Final answer
    x = 23,409.04

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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.