Home / 21,035.46-29,014.48-12,531.03

Finding the Fourth Proportional to 21,035.46, 29,014.48 and 12,531.03

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Solution

The fourth proportional to 21,035.46, 29,014.48 and 12,531.03 is: 17,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.46 : 29,014.48 = 12,531.03 : x
  2. Step 2: Convert to fraction form
    21,035.46/29,014.48 = 12,531.03/x
  3. Step 3: Cross multiply
    21,035.46x = 29,014.48 × 12,531.03
  4. Step 4: Simplify right side
    21,035.46x = 363,581,287.99
  5. Step 5: Solve for x
    x = 363,581,287.99/21,035.46
  6. Step 6: Final answer
    x = 17,284.21

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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.