Home / 31,545.04-43,530.68-18,106.83

Finding the Fourth Proportional to 31,545.04, 43,530.68 and 18,106.83

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Solution

The fourth proportional to 31,545.04, 43,530.68 and 18,106.83 is: 24,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.04 : 43,530.68 = 18,106.83 : x
  2. Step 2: Convert to fraction form
    31,545.04/43,530.68 = 18,106.83/x
  3. Step 3: Cross multiply
    31,545.04x = 43,530.68 × 18,106.83
  4. Step 4: Simplify right side
    31,545.04x = 788,202,622.54
  5. Step 5: Solve for x
    x = 788,202,622.54/31,545.04
  6. Step 6: Final answer
    x = 24,986.58

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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.