Home / 20,893.04-28,745.76-18,246.76

Finding the Fourth Proportional to 20,893.04, 28,745.76 and 18,246.76

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Solution

The fourth proportional to 20,893.04, 28,745.76 and 18,246.76 is: 25,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.04 : 28,745.76 = 18,246.76 : x
  2. Step 2: Convert to fraction form
    20,893.04/28,745.76 = 18,246.76/x
  3. Step 3: Cross multiply
    20,893.04x = 28,745.76 × 18,246.76
  4. Step 4: Simplify right side
    20,893.04x = 524,516,983.74
  5. Step 5: Solve for x
    x = 524,516,983.74/20,893.04
  6. Step 6: Final answer
    x = 25,104.87

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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.