Home / 30,107.09-45,162.99-9,045.50

Finding the Fourth Proportional to 30,107.09, 45,162.99 and 9,045.50

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Solution

The fourth proportional to 30,107.09, 45,162.99 and 9,045.50 is: 13,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,107.09 : 45,162.99 = 9,045.50 : x
  2. Step 2: Convert to fraction form
    30,107.09/45,162.99 = 9,045.50/x
  3. Step 3: Cross multiply
    30,107.09x = 45,162.99 × 9,045.50
  4. Step 4: Simplify right side
    30,107.09x = 408,521,600.23
  5. Step 5: Solve for x
    x = 408,521,600.23/30,107.09
  6. Step 6: Final answer
    x = 13,568.95

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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.