Home / 20,504.95-28,309.91-16,737.10

Finding the Fourth Proportional to 20,504.95, 28,309.91 and 16,737.10

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Solution

The fourth proportional to 20,504.95, 28,309.91 and 16,737.10 is: 23,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.95 : 28,309.91 = 16,737.10 : x
  2. Step 2: Convert to fraction form
    20,504.95/28,309.91 = 16,737.10/x
  3. Step 3: Cross multiply
    20,504.95x = 28,309.91 × 16,737.10
  4. Step 4: Simplify right side
    20,504.95x = 473,825,640.20
  5. Step 5: Solve for x
    x = 473,825,640.20/20,504.95
  6. Step 6: Final answer
    x = 23,107.87

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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.