Home / 37,317.20-55,974.60-12,358.40

Finding the Fourth Proportional to 37,317.20, 55,974.60 and 12,358.40

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Solution

The fourth proportional to 37,317.20, 55,974.60 and 12,358.40 is: 18,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,317.20 : 55,974.60 = 12,358.40 : x
  2. Step 2: Convert to fraction form
    37,317.20/55,974.60 = 12,358.40/x
  3. Step 3: Cross multiply
    37,317.20x = 55,974.60 × 12,358.40
  4. Step 4: Simplify right side
    37,317.20x = 691,756,496.64
  5. Step 5: Solve for x
    x = 691,756,496.64/37,317.20
  6. Step 6: Final answer
    x = 18,537.20

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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.