Home / 21,874.02-32,821.74-13,551.81

Finding the Fourth Proportional to 21,874.02, 32,821.74 and 13,551.81

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Solution

The fourth proportional to 21,874.02, 32,821.74 and 13,551.81 is: 20,334.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,874.02 : 32,821.74 = 13,551.81 : x
  2. Step 2: Convert to fraction form
    21,874.02/32,821.74 = 13,551.81/x
  3. Step 3: Cross multiply
    21,874.02x = 32,821.74 × 13,551.81
  4. Step 4: Simplify right side
    21,874.02x = 444,793,984.35
  5. Step 5: Solve for x
    x = 444,793,984.35/21,874.02
  6. Step 6: Final answer
    x = 20,334.35

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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.