Home / 21,179.30-29,232.74-14,384.82

Finding the Fourth Proportional to 21,179.30, 29,232.74 and 14,384.82

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Solution

The fourth proportional to 21,179.30, 29,232.74 and 14,384.82 is: 19,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.30 : 29,232.74 = 14,384.82 : x
  2. Step 2: Convert to fraction form
    21,179.30/29,232.74 = 14,384.82/x
  3. Step 3: Cross multiply
    21,179.30x = 29,232.74 × 14,384.82
  4. Step 4: Simplify right side
    21,179.30x = 420,507,703.01
  5. Step 5: Solve for x
    x = 420,507,703.01/21,179.30
  6. Step 6: Final answer
    x = 19,854.66

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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.