Home / 28,739.17-43,102.50-9,015.13

Finding the Fourth Proportional to 28,739.17, 43,102.50 and 9,015.13

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Solution

The fourth proportional to 28,739.17, 43,102.50 and 9,015.13 is: 13,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.17 : 43,102.50 = 9,015.13 : x
  2. Step 2: Convert to fraction form
    28,739.17/43,102.50 = 9,015.13/x
  3. Step 3: Cross multiply
    28,739.17x = 43,102.50 × 9,015.13
  4. Step 4: Simplify right side
    28,739.17x = 388,574,640.83
  5. Step 5: Solve for x
    x = 388,574,640.83/28,739.17
  6. Step 6: Final answer
    x = 13,520.73

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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.