Home / 30,267.02-45,404.76-8,081.12

Finding the Fourth Proportional to 30,267.02, 45,404.76 and 8,081.12

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Solution

The fourth proportional to 30,267.02, 45,404.76 and 8,081.12 is: 12,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267.02 : 45,404.76 = 8,081.12 : x
  2. Step 2: Convert to fraction form
    30,267.02/45,404.76 = 8,081.12/x
  3. Step 3: Cross multiply
    30,267.02x = 45,404.76 × 8,081.12
  4. Step 4: Simplify right side
    30,267.02x = 366,921,314.13
  5. Step 5: Solve for x
    x = 366,921,314.13/30,267.02
  6. Step 6: Final answer
    x = 12,122.81

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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.