Home / 28,869.12-43,270.05-12,223.62

Finding the Fourth Proportional to 28,869.12, 43,270.05 and 12,223.62

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Solution

The fourth proportional to 28,869.12, 43,270.05 and 12,223.62 is: 18,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.12 : 43,270.05 = 12,223.62 : x
  2. Step 2: Convert to fraction form
    28,869.12/43,270.05 = 12,223.62/x
  3. Step 3: Cross multiply
    28,869.12x = 43,270.05 × 12,223.62
  4. Step 4: Simplify right side
    28,869.12x = 528,916,648.58
  5. Step 5: Solve for x
    x = 528,916,648.58/28,869.12
  6. Step 6: Final answer
    x = 18,321.19

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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.