Home / 28,685.18-43,029.93-7,908.50

Finding the Fourth Proportional to 28,685.18, 43,029.93 and 7,908.50

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Solution

The fourth proportional to 28,685.18, 43,029.93 and 7,908.50 is: 11,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.18 : 43,029.93 = 7,908.50 : x
  2. Step 2: Convert to fraction form
    28,685.18/43,029.93 = 7,908.50/x
  3. Step 3: Cross multiply
    28,685.18x = 43,029.93 × 7,908.50
  4. Step 4: Simplify right side
    28,685.18x = 340,302,201.41
  5. Step 5: Solve for x
    x = 340,302,201.41/28,685.18
  6. Step 6: Final answer
    x = 11,863.35

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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.