Home / 19,920.24-29,885.49-5,879.70

Finding the Fourth Proportional to 19,920.24, 29,885.49 and 5,879.70

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Solution

The fourth proportional to 19,920.24, 29,885.49 and 5,879.70 is: 8,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.24 : 29,885.49 = 5,879.70 : x
  2. Step 2: Convert to fraction form
    19,920.24/29,885.49 = 5,879.70/x
  3. Step 3: Cross multiply
    19,920.24x = 29,885.49 × 5,879.70
  4. Step 4: Simplify right side
    19,920.24x = 175,717,715.55
  5. Step 5: Solve for x
    x = 175,717,715.55/19,920.24
  6. Step 6: Final answer
    x = 8,821.06

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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.