Home / 45,000.90-67,481.91-13,828.86

Finding the Fourth Proportional to 45,000.90, 67,481.91 and 13,828.86

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Solution

The fourth proportional to 45,000.90, 67,481.91 and 13,828.86 is: 20,737.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.90 : 67,481.91 = 13,828.86 : x
  2. Step 2: Convert to fraction form
    45,000.90/67,481.91 = 13,828.86/x
  3. Step 3: Cross multiply
    45,000.90x = 67,481.91 × 13,828.86
  4. Step 4: Simplify right side
    45,000.90x = 933,197,885.92
  5. Step 5: Solve for x
    x = 933,197,885.92/45,000.90
  6. Step 6: Final answer
    x = 20,737.32

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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.