Home / 20,752.73-31,127.16-8,269.41

Finding the Fourth Proportional to 20,752.73, 31,127.16 and 8,269.41

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Solution

The fourth proportional to 20,752.73, 31,127.16 and 8,269.41 is: 12,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.73 : 31,127.16 = 8,269.41 : x
  2. Step 2: Convert to fraction form
    20,752.73/31,127.16 = 8,269.41/x
  3. Step 3: Cross multiply
    20,752.73x = 31,127.16 × 8,269.41
  4. Step 4: Simplify right side
    20,752.73x = 257,403,395.91
  5. Step 5: Solve for x
    x = 257,403,395.91/20,752.73
  6. Step 6: Final answer
    x = 12,403.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.