Home / 16,890.33-23,309.40-10,520.70

Finding the Fourth Proportional to 16,890.33, 23,309.40 and 10,520.70

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Solution

The fourth proportional to 16,890.33, 23,309.40 and 10,520.70 is: 14,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.33 : 23,309.40 = 10,520.70 : x
  2. Step 2: Convert to fraction form
    16,890.33/23,309.40 = 10,520.70/x
  3. Step 3: Cross multiply
    16,890.33x = 23,309.40 × 10,520.70
  4. Step 4: Simplify right side
    16,890.33x = 245,231,156.62
  5. Step 5: Solve for x
    x = 245,231,156.62/16,890.33
  6. Step 6: Final answer
    x = 14,519.02

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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.