Home / 28,981.86-39,996.47-16,234.30

Finding the Fourth Proportional to 28,981.86, 39,996.47 and 16,234.30

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Solution

The fourth proportional to 28,981.86, 39,996.47 and 16,234.30 is: 22,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.86 : 39,996.47 = 16,234.30 : x
  2. Step 2: Convert to fraction form
    28,981.86/39,996.47 = 16,234.30/x
  3. Step 3: Cross multiply
    28,981.86x = 39,996.47 × 16,234.30
  4. Step 4: Simplify right side
    28,981.86x = 649,314,511.76
  5. Step 5: Solve for x
    x = 649,314,511.76/28,981.86
  6. Step 6: Final answer
    x = 22,404.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.