Home / 21,979.91-32,946.61-7,184.85

Finding the Fourth Proportional to 21,979.91, 32,946.61 and 7,184.85

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Solution

The fourth proportional to 21,979.91, 32,946.61 and 7,184.85 is: 10,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.91 : 32,946.61 = 7,184.85 : x
  2. Step 2: Convert to fraction form
    21,979.91/32,946.61 = 7,184.85/x
  3. Step 3: Cross multiply
    21,979.91x = 32,946.61 × 7,184.85
  4. Step 4: Simplify right side
    21,979.91x = 236,716,450.86
  5. Step 5: Solve for x
    x = 236,716,450.86/21,979.91
  6. Step 6: Final answer
    x = 10,769.67

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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.