Home / 32,742.24-45,172.42-21,418.18

Finding the Fourth Proportional to 32,742.24, 45,172.42 and 21,418.18

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Solution

The fourth proportional to 32,742.24, 45,172.42 and 21,418.18 is: 29,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,742.24 : 45,172.42 = 21,418.18 : x
  2. Step 2: Convert to fraction form
    32,742.24/45,172.42 = 21,418.18/x
  3. Step 3: Cross multiply
    32,742.24x = 45,172.42 × 21,418.18
  4. Step 4: Simplify right side
    32,742.24x = 967,511,022.60
  5. Step 5: Solve for x
    x = 967,511,022.60/32,742.24
  6. Step 6: Final answer
    x = 29,549.32

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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.