Home / 32,770.56-45,220.68-18,429.60

Finding the Fourth Proportional to 32,770.56, 45,220.68 and 18,429.60

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Solution

The fourth proportional to 32,770.56, 45,220.68 and 18,429.60 is: 25,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,770.56 : 45,220.68 = 18,429.60 : x
  2. Step 2: Convert to fraction form
    32,770.56/45,220.68 = 18,429.60/x
  3. Step 3: Cross multiply
    32,770.56x = 45,220.68 × 18,429.60
  4. Step 4: Simplify right side
    32,770.56x = 833,399,044.13
  5. Step 5: Solve for x
    x = 833,399,044.13/32,770.56
  6. Step 6: Final answer
    x = 25,431.33

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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.