Home / 21,722.08-32,582.55-6,931.90

Finding the Fourth Proportional to 21,722.08, 32,582.55 and 6,931.90

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Solution

The fourth proportional to 21,722.08, 32,582.55 and 6,931.90 is: 10,397.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722.08 : 32,582.55 = 6,931.90 : x
  2. Step 2: Convert to fraction form
    21,722.08/32,582.55 = 6,931.90/x
  3. Step 3: Cross multiply
    21,722.08x = 32,582.55 × 6,931.90
  4. Step 4: Simplify right side
    21,722.08x = 225,858,978.35
  5. Step 5: Solve for x
    x = 225,858,978.35/21,722.08
  6. Step 6: Final answer
    x = 10,397.67

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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.