Home / 30,290.29-45,432.23-8,105.91

Finding the Fourth Proportional to 30,290.29, 45,432.23 and 8,105.91

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Solution

The fourth proportional to 30,290.29, 45,432.23 and 8,105.91 is: 12,158.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.29 : 45,432.23 = 8,105.91 : x
  2. Step 2: Convert to fraction form
    30,290.29/45,432.23 = 8,105.91/x
  3. Step 3: Cross multiply
    30,290.29x = 45,432.23 × 8,105.91
  4. Step 4: Simplify right side
    30,290.29x = 368,269,582.44
  5. Step 5: Solve for x
    x = 368,269,582.44/30,290.29
  6. Step 6: Final answer
    x = 12,158.01

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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.