Home / 30,575.45-42,176.22-19,226.99

Finding the Fourth Proportional to 30,575.45, 42,176.22 and 19,226.99

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Solution

The fourth proportional to 30,575.45, 42,176.22 and 19,226.99 is: 26,521.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.45 : 42,176.22 = 19,226.99 : x
  2. Step 2: Convert to fraction form
    30,575.45/42,176.22 = 19,226.99/x
  3. Step 3: Cross multiply
    30,575.45x = 42,176.22 × 19,226.99
  4. Step 4: Simplify right side
    30,575.45x = 810,921,760.18
  5. Step 5: Solve for x
    x = 810,921,760.18/30,575.45
  6. Step 6: Final answer
    x = 26,521.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.