Home / 38,820.40-58,230.60-11,118.40

Finding the Fourth Proportional to 38,820.40, 58,230.60 and 11,118.40

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Solution

The fourth proportional to 38,820.40, 58,230.60 and 11,118.40 is: 16,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,820.40 : 58,230.60 = 11,118.40 : x
  2. Step 2: Convert to fraction form
    38,820.40/58,230.60 = 11,118.40/x
  3. Step 3: Cross multiply
    38,820.40x = 58,230.60 × 11,118.40
  4. Step 4: Simplify right side
    38,820.40x = 647,431,103.04
  5. Step 5: Solve for x
    x = 647,431,103.04/38,820.40
  6. Step 6: Final answer
    x = 16,677.60

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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.