Home / 30,211.36-41,691.12-16,782.08

Finding the Fourth Proportional to 30,211.36, 41,691.12 and 16,782.08

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Solution

The fourth proportional to 30,211.36, 41,691.12 and 16,782.08 is: 23,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.36 : 41,691.12 = 16,782.08 : x
  2. Step 2: Convert to fraction form
    30,211.36/41,691.12 = 16,782.08/x
  3. Step 3: Cross multiply
    30,211.36x = 41,691.12 × 16,782.08
  4. Step 4: Simplify right side
    30,211.36x = 699,663,711.13
  5. Step 5: Solve for x
    x = 699,663,711.13/30,211.36
  6. Step 6: Final answer
    x = 23,158.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.