Home / 28,865.28-43,265.09-12,214.92

Finding the Fourth Proportional to 28,865.28, 43,265.09 and 12,214.92

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Solution

The fourth proportional to 28,865.28, 43,265.09 and 12,214.92 is: 18,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.28 : 43,265.09 = 12,214.92 : x
  2. Step 2: Convert to fraction form
    28,865.28/43,265.09 = 12,214.92/x
  3. Step 3: Cross multiply
    28,865.28x = 43,265.09 × 12,214.92
  4. Step 4: Simplify right side
    28,865.28x = 528,479,552.07
  5. Step 5: Solve for x
    x = 528,479,552.07/28,865.28
  6. Step 6: Final answer
    x = 18,308.49

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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.