Home / 21,066.85-31,600.28-5,484.48

Finding the Fourth Proportional to 21,066.85, 31,600.28 and 5,484.48

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Solution

The fourth proportional to 21,066.85, 31,600.28 and 5,484.48 is: 8,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.85 : 31,600.28 = 5,484.48 : x
  2. Step 2: Convert to fraction form
    21,066.85/31,600.28 = 5,484.48/x
  3. Step 3: Cross multiply
    21,066.85x = 31,600.28 × 5,484.48
  4. Step 4: Simplify right side
    21,066.85x = 173,311,103.65
  5. Step 5: Solve for x
    x = 173,311,103.65/21,066.85
  6. Step 6: Final answer
    x = 8,226.72

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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.