Home / 21,411.44-29,547.84-11,851.99

Finding the Fourth Proportional to 21,411.44, 29,547.84 and 11,851.99

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Solution

The fourth proportional to 21,411.44, 29,547.84 and 11,851.99 is: 16,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.44 : 29,547.84 = 11,851.99 : x
  2. Step 2: Convert to fraction form
    21,411.44/29,547.84 = 11,851.99/x
  3. Step 3: Cross multiply
    21,411.44x = 29,547.84 × 11,851.99
  4. Step 4: Simplify right side
    21,411.44x = 350,200,704.20
  5. Step 5: Solve for x
    x = 350,200,704.20/21,411.44
  6. Step 6: Final answer
    x = 16,355.78

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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.