Home / 30,286.13-45,430.81-9,511.25

Finding the Fourth Proportional to 30,286.13, 45,430.81 and 9,511.25

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Solution

The fourth proportional to 30,286.13, 45,430.81 and 9,511.25 is: 14,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.13 : 45,430.81 = 9,511.25 : x
  2. Step 2: Convert to fraction form
    30,286.13/45,430.81 = 9,511.25/x
  3. Step 3: Cross multiply
    30,286.13x = 45,430.81 × 9,511.25
  4. Step 4: Simplify right side
    30,286.13x = 432,103,540.68
  5. Step 5: Solve for x
    x = 432,103,540.68/30,286.13
  6. Step 6: Final answer
    x = 14,267.38

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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.