Home / 20,370.80-30,416.84-18,248.73

Finding the Fourth Proportional to 20,370.80, 30,416.84 and 18,248.73

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Solution

The fourth proportional to 20,370.80, 30,416.84 and 18,248.73 is: 27,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.80 : 30,416.84 = 18,248.73 : x
  2. Step 2: Convert to fraction form
    20,370.80/30,416.84 = 18,248.73/x
  3. Step 3: Cross multiply
    20,370.80x = 30,416.84 × 18,248.73
  4. Step 4: Simplify right side
    20,370.80x = 555,068,563.74
  5. Step 5: Solve for x
    x = 555,068,563.74/20,370.80
  6. Step 6: Final answer
    x = 27,248.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.