Home / 38,631.78-57,946.59-12,338.10

Finding the Fourth Proportional to 38,631.78, 57,946.59 and 12,338.10

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Solution

The fourth proportional to 38,631.78, 57,946.59 and 12,338.10 is: 18,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.78 : 57,946.59 = 12,338.10 : x
  2. Step 2: Convert to fraction form
    38,631.78/57,946.59 = 12,338.10/x
  3. Step 3: Cross multiply
    38,631.78x = 57,946.59 × 12,338.10
  4. Step 4: Simplify right side
    38,631.78x = 714,950,822.08
  5. Step 5: Solve for x
    x = 714,950,822.08/38,631.78
  6. Step 6: Final answer
    x = 18,506.81

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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.