Home / 16,689.92-23,041.13-13,280.22

Finding the Fourth Proportional to 16,689.92, 23,041.13 and 13,280.22

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Solution

The fourth proportional to 16,689.92, 23,041.13 and 13,280.22 is: 18,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.92 : 23,041.13 = 13,280.22 : x
  2. Step 2: Convert to fraction form
    16,689.92/23,041.13 = 13,280.22/x
  3. Step 3: Cross multiply
    16,689.92x = 23,041.13 × 13,280.22
  4. Step 4: Simplify right side
    16,689.92x = 305,991,209.05
  5. Step 5: Solve for x
    x = 305,991,209.05/16,689.92
  6. Step 6: Final answer
    x = 18,333.90

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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.