Home / 28,713.24-43,076.76-9,990.52

Finding the Fourth Proportional to 28,713.24, 43,076.76 and 9,990.52

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Solution

The fourth proportional to 28,713.24, 43,076.76 and 9,990.52 is: 14,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.24 : 43,076.76 = 9,990.52 : x
  2. Step 2: Convert to fraction form
    28,713.24/43,076.76 = 9,990.52/x
  3. Step 3: Cross multiply
    28,713.24x = 43,076.76 × 9,990.52
  4. Step 4: Simplify right side
    28,713.24x = 430,359,232.32
  5. Step 5: Solve for x
    x = 430,359,232.32/28,713.24
  6. Step 6: Final answer
    x = 14,988.18

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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.