Home / 21,473.31-29,634.69-11,916.26

Finding the Fourth Proportional to 21,473.31, 29,634.69 and 11,916.26

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Solution

The fourth proportional to 21,473.31, 29,634.69 and 11,916.26 is: 16,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473.31 : 29,634.69 = 11,916.26 : x
  2. Step 2: Convert to fraction form
    21,473.31/29,634.69 = 11,916.26/x
  3. Step 3: Cross multiply
    21,473.31x = 29,634.69 × 11,916.26
  4. Step 4: Simplify right side
    21,473.31x = 353,134,671.06
  5. Step 5: Solve for x
    x = 353,134,671.06/21,473.31
  6. Step 6: Final answer
    x = 16,445.28

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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.