Home / 31,730.37-43,798.89-18,306.98

Finding the Fourth Proportional to 31,730.37, 43,798.89 and 18,306.98

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Solution

The fourth proportional to 31,730.37, 43,798.89 and 18,306.98 is: 25,269.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730.37 : 43,798.89 = 18,306.98 : x
  2. Step 2: Convert to fraction form
    31,730.37/43,798.89 = 18,306.98/x
  3. Step 3: Cross multiply
    31,730.37x = 43,798.89 × 18,306.98
  4. Step 4: Simplify right side
    31,730.37x = 801,825,184.26
  5. Step 5: Solve for x
    x = 801,825,184.26/31,730.37
  6. Step 6: Final answer
    x = 25,269.96

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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.