Home / 28,963.31-43,445.36-8,186.81

Finding the Fourth Proportional to 28,963.31, 43,445.36 and 8,186.81

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Solution

The fourth proportional to 28,963.31, 43,445.36 and 8,186.81 is: 12,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.31 : 43,445.36 = 8,186.81 : x
  2. Step 2: Convert to fraction form
    28,963.31/43,445.36 = 8,186.81/x
  3. Step 3: Cross multiply
    28,963.31x = 43,445.36 × 8,186.81
  4. Step 4: Simplify right side
    28,963.31x = 355,678,710.94
  5. Step 5: Solve for x
    x = 355,678,710.94/28,963.31
  6. Step 6: Final answer
    x = 12,280.32

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1.5x scale

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.