Home / 37,119.60-55,684.80-12,155.40

Finding the Fourth Proportional to 37,119.60, 55,684.80 and 12,155.40

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Solution

The fourth proportional to 37,119.60, 55,684.80 and 12,155.40 is: 18,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,119.60 : 55,684.80 = 12,155.40 : x
  2. Step 2: Convert to fraction form
    37,119.60/55,684.80 = 12,155.40/x
  3. Step 3: Cross multiply
    37,119.60x = 55,684.80 × 12,155.40
  4. Step 4: Simplify right side
    37,119.60x = 676,871,017.92
  5. Step 5: Solve for x
    x = 676,871,017.92/37,119.60
  6. Step 6: Final answer
    x = 18,234.87

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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.