Home / 21,045.64-29,043.12-11,486.20

Finding the Fourth Proportional to 21,045.64, 29,043.12 and 11,486.20

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Solution

The fourth proportional to 21,045.64, 29,043.12 and 11,486.20 is: 15,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.64 : 29,043.12 = 11,486.20 : x
  2. Step 2: Convert to fraction form
    21,045.64/29,043.12 = 11,486.20/x
  3. Step 3: Cross multiply
    21,045.64x = 29,043.12 × 11,486.20
  4. Step 4: Simplify right side
    21,045.64x = 333,595,084.94
  5. Step 5: Solve for x
    x = 333,595,084.94/21,045.64
  6. Step 6: Final answer
    x = 15,851.03

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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.