Home / 20,624.54-28,447.16-18,928.51

Finding the Fourth Proportional to 20,624.54, 28,447.16 and 18,928.51

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Solution

The fourth proportional to 20,624.54, 28,447.16 and 18,928.51 is: 26,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.54 : 28,447.16 = 18,928.51 : x
  2. Step 2: Convert to fraction form
    20,624.54/28,447.16 = 18,928.51/x
  3. Step 3: Cross multiply
    20,624.54x = 28,447.16 × 18,928.51
  4. Step 4: Simplify right side
    20,624.54x = 538,462,186.77
  5. Step 5: Solve for x
    x = 538,462,186.77/20,624.54
  6. Step 6: Final answer
    x = 26,107.85

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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.