Home / 30,265.92-45,398.75-8,081.51

Finding the Fourth Proportional to 30,265.92, 45,398.75 and 8,081.51

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Solution

The fourth proportional to 30,265.92, 45,398.75 and 8,081.51 is: 12,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,265.92 : 45,398.75 = 8,081.51 : x
  2. Step 2: Convert to fraction form
    30,265.92/45,398.75 = 8,081.51/x
  3. Step 3: Cross multiply
    30,265.92x = 45,398.75 × 8,081.51
  4. Step 4: Simplify right side
    30,265.92x = 366,890,184.71
  5. Step 5: Solve for x
    x = 366,890,184.71/30,265.92
  6. Step 6: Final answer
    x = 12,122.22

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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.