Home / 28,988.68-43,490.22-8,212.36

Finding the Fourth Proportional to 28,988.68, 43,490.22 and 8,212.36

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Solution

The fourth proportional to 28,988.68, 43,490.22 and 8,212.36 is: 12,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.68 : 43,490.22 = 8,212.36 : x
  2. Step 2: Convert to fraction form
    28,988.68/43,490.22 = 8,212.36/x
  3. Step 3: Cross multiply
    28,988.68x = 43,490.22 × 8,212.36
  4. Step 4: Simplify right side
    28,988.68x = 357,157,343.12
  5. Step 5: Solve for x
    x = 357,157,343.12/28,988.68
  6. Step 6: Final answer
    x = 12,320.58

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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.