Home / 18,928.17-28,390.23-5,789.70

Finding the Fourth Proportional to 18,928.17, 28,390.23 and 5,789.70

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Solution

The fourth proportional to 18,928.17, 28,390.23 and 5,789.70 is: 8,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.17 : 28,390.23 = 5,789.70 : x
  2. Step 2: Convert to fraction form
    18,928.17/28,390.23 = 5,789.70/x
  3. Step 3: Cross multiply
    18,928.17x = 28,390.23 × 5,789.70
  4. Step 4: Simplify right side
    18,928.17x = 164,370,914.63
  5. Step 5: Solve for x
    x = 164,370,914.63/18,928.17
  6. Step 6: Final answer
    x = 8,683.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.