Home / 21,766.02-30,037.11-12,819.03

Finding the Fourth Proportional to 21,766.02, 30,037.11 and 12,819.03

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Solution

The fourth proportional to 21,766.02, 30,037.11 and 12,819.03 is: 17,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.02 : 30,037.11 = 12,819.03 : x
  2. Step 2: Convert to fraction form
    21,766.02/30,037.11 = 12,819.03/x
  3. Step 3: Cross multiply
    21,766.02x = 30,037.11 × 12,819.03
  4. Step 4: Simplify right side
    21,766.02x = 385,046,525.60
  5. Step 5: Solve for x
    x = 385,046,525.60/21,766.02
  6. Step 6: Final answer
    x = 17,690.26

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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.