Home / 28,762.68-43,160.58-12,121.32

Finding the Fourth Proportional to 28,762.68, 43,160.58 and 12,121.32

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Solution

The fourth proportional to 28,762.68, 43,160.58 and 12,121.32 is: 18,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.68 : 43,160.58 = 12,121.32 : x
  2. Step 2: Convert to fraction form
    28,762.68/43,160.58 = 12,121.32/x
  3. Step 3: Cross multiply
    28,762.68x = 43,160.58 × 12,121.32
  4. Step 4: Simplify right side
    28,762.68x = 523,163,201.57
  5. Step 5: Solve for x
    x = 523,163,201.57/28,762.68
  6. Step 6: Final answer
    x = 18,188.96

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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.