Home / 21,080.67-29,090.18-11,648.63

Finding the Fourth Proportional to 21,080.67, 29,090.18 and 11,648.63

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Solution

The fourth proportional to 21,080.67, 29,090.18 and 11,648.63 is: 16,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.67 : 29,090.18 = 11,648.63 : x
  2. Step 2: Convert to fraction form
    21,080.67/29,090.18 = 11,648.63/x
  3. Step 3: Cross multiply
    21,080.67x = 29,090.18 × 11,648.63
  4. Step 4: Simplify right side
    21,080.67x = 338,860,598.00
  5. Step 5: Solve for x
    x = 338,860,598.00/21,080.67
  6. Step 6: Final answer
    x = 16,074.47

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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.