Home / 37,318.20-55,976.10-12,359.40

Finding the Fourth Proportional to 37,318.20, 55,976.10 and 12,359.40

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Solution

The fourth proportional to 37,318.20, 55,976.10 and 12,359.40 is: 18,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,318.20 : 55,976.10 = 12,359.40 : x
  2. Step 2: Convert to fraction form
    37,318.20/55,976.10 = 12,359.40/x
  3. Step 3: Cross multiply
    37,318.20x = 55,976.10 × 12,359.40
  4. Step 4: Simplify right side
    37,318.20x = 691,831,010.34
  5. Step 5: Solve for x
    x = 691,831,010.34/37,318.20
  6. Step 6: Final answer
    x = 18,538.70

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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.