Home / 30,085.74-45,128.10-10,363.86

Finding the Fourth Proportional to 30,085.74, 45,128.10 and 10,363.86

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Solution

The fourth proportional to 30,085.74, 45,128.10 and 10,363.86 is: 15,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.74 : 45,128.10 = 10,363.86 : x
  2. Step 2: Convert to fraction form
    30,085.74/45,128.10 = 10,363.86/x
  3. Step 3: Cross multiply
    30,085.74x = 45,128.10 × 10,363.86
  4. Step 4: Simplify right side
    30,085.74x = 467,701,310.47
  5. Step 5: Solve for x
    x = 467,701,310.47/30,085.74
  6. Step 6: Final answer
    x = 15,545.61

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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.