Home / 43,545.33-65,323.67-12,381.39

Finding the Fourth Proportional to 43,545.33, 65,323.67 and 12,381.39

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Solution

The fourth proportional to 43,545.33, 65,323.67 and 12,381.39 is: 18,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,545.33 : 65,323.67 = 12,381.39 : x
  2. Step 2: Convert to fraction form
    43,545.33/65,323.67 = 12,381.39/x
  3. Step 3: Cross multiply
    43,545.33x = 65,323.67 × 12,381.39
  4. Step 4: Simplify right side
    43,545.33x = 808,797,772.59
  5. Step 5: Solve for x
    x = 808,797,772.59/43,545.33
  6. Step 6: Final answer
    x = 18,573.70

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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.