Home / 21,579.01-29,788.25-14,509.54

Finding the Fourth Proportional to 21,579.01, 29,788.25 and 14,509.54

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Solution

The fourth proportional to 21,579.01, 29,788.25 and 14,509.54 is: 20,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.01 : 29,788.25 = 14,509.54 : x
  2. Step 2: Convert to fraction form
    21,579.01/29,788.25 = 14,509.54/x
  3. Step 3: Cross multiply
    21,579.01x = 29,788.25 × 14,509.54
  4. Step 4: Simplify right side
    21,579.01x = 432,213,804.91
  5. Step 5: Solve for x
    x = 432,213,804.91/21,579.01
  6. Step 6: Final answer
    x = 20,029.36

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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.