Home / 20,338.13-28,065.24-11,262.84

Finding the Fourth Proportional to 20,338.13, 28,065.24 and 11,262.84

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Solution

The fourth proportional to 20,338.13, 28,065.24 and 11,262.84 is: 15,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.13 : 28,065.24 = 11,262.84 : x
  2. Step 2: Convert to fraction form
    20,338.13/28,065.24 = 11,262.84/x
  3. Step 3: Cross multiply
    20,338.13x = 28,065.24 × 11,262.84
  4. Step 4: Simplify right side
    20,338.13x = 316,094,307.68
  5. Step 5: Solve for x
    x = 316,094,307.68/20,338.13
  6. Step 6: Final answer
    x = 15,541.96

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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.