Home / 28,412.43-39,213.72-22,348.98

Finding the Fourth Proportional to 28,412.43, 39,213.72 and 22,348.98

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Solution

The fourth proportional to 28,412.43, 39,213.72 and 22,348.98 is: 30,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.43 : 39,213.72 = 22,348.98 : x
  2. Step 2: Convert to fraction form
    28,412.43/39,213.72 = 22,348.98/x
  3. Step 3: Cross multiply
    28,412.43x = 39,213.72 × 22,348.98
  4. Step 4: Simplify right side
    28,412.43x = 876,386,644.01
  5. Step 5: Solve for x
    x = 876,386,644.01/28,412.43
  6. Step 6: Final answer
    x = 30,845.18

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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.