Home / 31,369.70-43,271.17-18,614.48

Finding the Fourth Proportional to 31,369.70, 43,271.17 and 18,614.48

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Solution

The fourth proportional to 31,369.70, 43,271.17 and 18,614.48 is: 25,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.70 : 43,271.17 = 18,614.48 : x
  2. Step 2: Convert to fraction form
    31,369.70/43,271.17 = 18,614.48/x
  3. Step 3: Cross multiply
    31,369.70x = 43,271.17 × 18,614.48
  4. Step 4: Simplify right side
    31,369.70x = 805,470,235.47
  5. Step 5: Solve for x
    x = 805,470,235.47/31,369.70
  6. Step 6: Final answer
    x = 25,676.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.