Home / 30,830.05-46,245.10-7,456.49

Finding the Fourth Proportional to 30,830.05, 46,245.10 and 7,456.49

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Solution

The fourth proportional to 30,830.05, 46,245.10 and 7,456.49 is: 11,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830.05 : 46,245.10 = 7,456.49 : x
  2. Step 2: Convert to fraction form
    30,830.05/46,245.10 = 7,456.49/x
  3. Step 3: Cross multiply
    30,830.05x = 46,245.10 × 7,456.49
  4. Step 4: Simplify right side
    30,830.05x = 344,826,077.21
  5. Step 5: Solve for x
    x = 344,826,077.21/30,830.05
  6. Step 6: Final answer
    x = 11,184.74

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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.