Home / 21,617.66-29,832.22-12,663.25

Finding the Fourth Proportional to 21,617.66, 29,832.22 and 12,663.25

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Solution

The fourth proportional to 21,617.66, 29,832.22 and 12,663.25 is: 17,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.66 : 29,832.22 = 12,663.25 : x
  2. Step 2: Convert to fraction form
    21,617.66/29,832.22 = 12,663.25/x
  3. Step 3: Cross multiply
    21,617.66x = 29,832.22 × 12,663.25
  4. Step 4: Simplify right side
    21,617.66x = 377,772,859.92
  5. Step 5: Solve for x
    x = 377,772,859.92/21,617.66
  6. Step 6: Final answer
    x = 17,475.20

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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.