Home / 20,272.14-30,473.62-18,798.21

Finding the Fourth Proportional to 20,272.14, 30,473.62 and 18,798.21

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Solution

The fourth proportional to 20,272.14, 30,473.62 and 18,798.21 is: 28,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.14 : 30,473.62 = 18,798.21 : x
  2. Step 2: Convert to fraction form
    20,272.14/30,473.62 = 18,798.21/x
  3. Step 3: Cross multiply
    20,272.14x = 30,473.62 × 18,798.21
  4. Step 4: Simplify right side
    20,272.14x = 572,849,461.22
  5. Step 5: Solve for x
    x = 572,849,461.22/20,272.14
  6. Step 6: Final answer
    x = 28,257.97

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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.