Home / 28,991.60-40,010.31-16,244.09

Finding the Fourth Proportional to 28,991.60, 40,010.31 and 16,244.09

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Solution

The fourth proportional to 28,991.60, 40,010.31 and 16,244.09 is: 22,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.60 : 40,010.31 = 16,244.09 : x
  2. Step 2: Convert to fraction form
    28,991.60/40,010.31 = 16,244.09/x
  3. Step 3: Cross multiply
    28,991.60x = 40,010.31 × 16,244.09
  4. Step 4: Simplify right side
    28,991.60x = 649,930,876.52
  5. Step 5: Solve for x
    x = 649,930,876.52/28,991.60
  6. Step 6: Final answer
    x = 22,417.91

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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.