Home / 28,954.80-43,432.20-8,178.30

Finding the Fourth Proportional to 28,954.80, 43,432.20 and 8,178.30

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Solution

The fourth proportional to 28,954.80, 43,432.20 and 8,178.30 is: 12,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,954.80 : 43,432.20 = 8,178.30 : x
  2. Step 2: Convert to fraction form
    28,954.80/43,432.20 = 8,178.30/x
  3. Step 3: Cross multiply
    28,954.80x = 43,432.20 × 8,178.30
  4. Step 4: Simplify right side
    28,954.80x = 355,201,561.26
  5. Step 5: Solve for x
    x = 355,201,561.26/28,954.80
  6. Step 6: Final answer
    x = 12,267.45

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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.