Home / 21,776.24-30,048.80-12,214.15

Finding the Fourth Proportional to 21,776.24, 30,048.80 and 12,214.15

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Solution

The fourth proportional to 21,776.24, 30,048.80 and 12,214.15 is: 16,854.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.24 : 30,048.80 = 12,214.15 : x
  2. Step 2: Convert to fraction form
    21,776.24/30,048.80 = 12,214.15/x
  3. Step 3: Cross multiply
    21,776.24x = 30,048.80 × 12,214.15
  4. Step 4: Simplify right side
    21,776.24x = 367,020,414.33
  5. Step 5: Solve for x
    x = 367,020,414.33/21,776.24
  6. Step 6: Final answer
    x = 16,854.17

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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.