Home / 30,245.40-45,329.76-12,694.86

Finding the Fourth Proportional to 30,245.40, 45,329.76 and 12,694.86

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Solution

The fourth proportional to 30,245.40, 45,329.76 and 12,694.86 is: 19,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.40 : 45,329.76 = 12,694.86 : x
  2. Step 2: Convert to fraction form
    30,245.40/45,329.76 = 12,694.86/x
  3. Step 3: Cross multiply
    30,245.40x = 45,329.76 × 12,694.86
  4. Step 4: Simplify right side
    30,245.40x = 575,454,957.03
  5. Step 5: Solve for x
    x = 575,454,957.03/30,245.40
  6. Step 6: Final answer
    x = 19,026.20

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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.