Home / 37,143.30-55,721.70-12,176.40

Finding the Fourth Proportional to 37,143.30, 55,721.70 and 12,176.40

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Solution

The fourth proportional to 37,143.30, 55,721.70 and 12,176.40 is: 18,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,143.30 : 55,721.70 = 12,176.40 : x
  2. Step 2: Convert to fraction form
    37,143.30/55,721.70 = 12,176.40/x
  3. Step 3: Cross multiply
    37,143.30x = 55,721.70 × 12,176.40
  4. Step 4: Simplify right side
    37,143.30x = 678,489,707.88
  5. Step 5: Solve for x
    x = 678,489,707.88/37,143.30
  6. Step 6: Final answer
    x = 18,266.81

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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.