Home / 20,673.84-28,517.13-18,027.57

Finding the Fourth Proportional to 20,673.84, 28,517.13 and 18,027.57

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Solution

The fourth proportional to 20,673.84, 28,517.13 and 18,027.57 is: 24,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.84 : 28,517.13 = 18,027.57 : x
  2. Step 2: Convert to fraction form
    20,673.84/28,517.13 = 18,027.57/x
  3. Step 3: Cross multiply
    20,673.84x = 28,517.13 × 18,027.57
  4. Step 4: Simplify right side
    20,673.84x = 514,094,557.27
  5. Step 5: Solve for x
    x = 514,094,557.27/20,673.84
  6. Step 6: Final answer
    x = 24,866.91

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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.