Home / 21,803.02-30,080.60-12,241.58

Finding the Fourth Proportional to 21,803.02, 30,080.60 and 12,241.58

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Solution

The fourth proportional to 21,803.02, 30,080.60 and 12,241.58 is: 16,889.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.02 : 30,080.60 = 12,241.58 : x
  2. Step 2: Convert to fraction form
    21,803.02/30,080.60 = 12,241.58/x
  3. Step 3: Cross multiply
    21,803.02x = 30,080.60 × 12,241.58
  4. Step 4: Simplify right side
    21,803.02x = 368,233,859.74
  5. Step 5: Solve for x
    x = 368,233,859.74/21,803.02
  6. Step 6: Final answer
    x = 16,889.13

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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.