Home / 28,383.80-42,624.30-18,566.60

Finding the Fourth Proportional to 28,383.80, 42,624.30 and 18,566.60

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Solution

The fourth proportional to 28,383.80, 42,624.30 and 18,566.60 is: 27,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.80 : 42,624.30 = 18,566.60 : x
  2. Step 2: Convert to fraction form
    28,383.80/42,624.30 = 18,566.60/x
  3. Step 3: Cross multiply
    28,383.80x = 42,624.30 × 18,566.60
  4. Step 4: Simplify right side
    28,383.80x = 791,388,328.38
  5. Step 5: Solve for x
    x = 791,388,328.38/28,383.80
  6. Step 6: Final answer
    x = 27,881.69

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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.