Home / 20,421.54-30,658.23-17,362.98

Finding the Fourth Proportional to 20,421.54, 30,658.23 and 17,362.98

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Solution

The fourth proportional to 20,421.54, 30,658.23 and 17,362.98 is: 26,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421.54 : 30,658.23 = 17,362.98 : x
  2. Step 2: Convert to fraction form
    20,421.54/30,658.23 = 17,362.98/x
  3. Step 3: Cross multiply
    20,421.54x = 30,658.23 × 17,362.98
  4. Step 4: Simplify right side
    20,421.54x = 532,318,234.33
  5. Step 5: Solve for x
    x = 532,318,234.33/20,421.54
  6. Step 6: Final answer
    x = 26,066.51

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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.