Home / 21,324.74-29,418.63-12,367.05

Finding the Fourth Proportional to 21,324.74, 29,418.63 and 12,367.05

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Solution

The fourth proportional to 21,324.74, 29,418.63 and 12,367.05 is: 17,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.74 : 29,418.63 = 12,367.05 : x
  2. Step 2: Convert to fraction form
    21,324.74/29,418.63 = 12,367.05/x
  3. Step 3: Cross multiply
    21,324.74x = 29,418.63 × 12,367.05
  4. Step 4: Simplify right side
    21,324.74x = 363,821,459.21
  5. Step 5: Solve for x
    x = 363,821,459.21/21,324.74
  6. Step 6: Final answer
    x = 17,061.01

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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.