Home / 21,359.90-32,039.85-5,778.74

Finding the Fourth Proportional to 21,359.90, 32,039.85 and 5,778.74

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Solution

The fourth proportional to 21,359.90, 32,039.85 and 5,778.74 is: 8,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.90 : 32,039.85 = 5,778.74 : x
  2. Step 2: Convert to fraction form
    21,359.90/32,039.85 = 5,778.74/x
  3. Step 3: Cross multiply
    21,359.90x = 32,039.85 × 5,778.74
  4. Step 4: Simplify right side
    21,359.90x = 185,150,064.56
  5. Step 5: Solve for x
    x = 185,150,064.56/21,359.90
  6. Step 6: Final answer
    x = 8,668.11

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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.