Home / 38,513.84-57,779.40-12,219.44

Finding the Fourth Proportional to 38,513.84, 57,779.40 and 12,219.44

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Solution

The fourth proportional to 38,513.84, 57,779.40 and 12,219.44 is: 18,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.84 : 57,779.40 = 12,219.44 : x
  2. Step 2: Convert to fraction form
    38,513.84/57,779.40 = 12,219.44/x
  3. Step 3: Cross multiply
    38,513.84x = 57,779.40 × 12,219.44
  4. Step 4: Simplify right side
    38,513.84x = 706,031,911.54
  5. Step 5: Solve for x
    x = 706,031,911.54/38,513.84
  6. Step 6: Final answer
    x = 18,331.90

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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.