Home / 30,561.54-45,860.18-12,790.71

Finding the Fourth Proportional to 30,561.54, 45,860.18 and 12,790.71

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Solution

The fourth proportional to 30,561.54, 45,860.18 and 12,790.71 is: 19,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.54 : 45,860.18 = 12,790.71 : x
  2. Step 2: Convert to fraction form
    30,561.54/45,860.18 = 12,790.71/x
  3. Step 3: Cross multiply
    30,561.54x = 45,860.18 × 12,790.71
  4. Step 4: Simplify right side
    30,561.54x = 586,584,262.93
  5. Step 5: Solve for x
    x = 586,584,262.93/30,561.54
  6. Step 6: Final answer
    x = 19,193.54

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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.