Home / 21,293.72-31,790.85-16,269.80

Finding the Fourth Proportional to 21,293.72, 31,790.85 and 16,269.80

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Solution

The fourth proportional to 21,293.72, 31,790.85 and 16,269.80 is: 24,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.72 : 31,790.85 = 16,269.80 : x
  2. Step 2: Convert to fraction form
    21,293.72/31,790.85 = 16,269.80/x
  3. Step 3: Cross multiply
    21,293.72x = 31,790.85 × 16,269.80
  4. Step 4: Simplify right side
    21,293.72x = 517,230,612.38
  5. Step 5: Solve for x
    x = 517,230,612.38/21,293.72
  6. Step 6: Final answer
    x = 24,290.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.