Home / 31,370.20-43,271.86-18,614.98

Finding the Fourth Proportional to 31,370.20, 43,271.86 and 18,614.98

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Solution

The fourth proportional to 31,370.20, 43,271.86 and 18,614.98 is: 25,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.20 : 43,271.86 = 18,614.98 : x
  2. Step 2: Convert to fraction form
    31,370.20/43,271.86 = 18,614.98/x
  3. Step 3: Cross multiply
    31,370.20x = 43,271.86 × 18,614.98
  4. Step 4: Simplify right side
    31,370.20x = 805,504,808.46
  5. Step 5: Solve for x
    x = 805,504,808.46/31,370.20
  6. Step 6: Final answer
    x = 25,677.39

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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.