Home / 20,322.81-28,044.57-11,825.13

Finding the Fourth Proportional to 20,322.81, 28,044.57 and 11,825.13

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Solution

The fourth proportional to 20,322.81, 28,044.57 and 11,825.13 is: 16,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.81 : 28,044.57 = 11,825.13 : x
  2. Step 2: Convert to fraction form
    20,322.81/28,044.57 = 11,825.13/x
  3. Step 3: Cross multiply
    20,322.81x = 28,044.57 × 11,825.13
  4. Step 4: Simplify right side
    20,322.81x = 331,630,686.04
  5. Step 5: Solve for x
    x = 331,630,686.04/20,322.81
  6. Step 6: Final answer
    x = 16,318.15

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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.