Home / 21,618.02-29,832.85-11,682.02

Finding the Fourth Proportional to 21,618.02, 29,832.85 and 11,682.02

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Solution

The fourth proportional to 21,618.02, 29,832.85 and 11,682.02 is: 16,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.02 : 29,832.85 = 11,682.02 : x
  2. Step 2: Convert to fraction form
    21,618.02/29,832.85 = 11,682.02/x
  3. Step 3: Cross multiply
    21,618.02x = 29,832.85 × 11,682.02
  4. Step 4: Simplify right side
    21,618.02x = 348,507,950.36
  5. Step 5: Solve for x
    x = 348,507,950.36/21,618.02
  6. Step 6: Final answer
    x = 16,121.18

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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.