Home / 38,403.83-57,605.75-12,111.23

Finding the Fourth Proportional to 38,403.83, 57,605.75 and 12,111.23

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Solution

The fourth proportional to 38,403.83, 57,605.75 and 12,111.23 is: 18,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.83 : 57,605.75 = 12,111.23 : x
  2. Step 2: Convert to fraction form
    38,403.83/57,605.75 = 12,111.23/x
  3. Step 3: Cross multiply
    38,403.83x = 57,605.75 × 12,111.23
  4. Step 4: Simplify right side
    38,403.83x = 697,676,616.45
  5. Step 5: Solve for x
    x = 697,676,616.45/38,403.83
  6. Step 6: Final answer
    x = 18,166.85

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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.